{"products":[{"id":10232915493192,"title":"Adamax","handle":"adamax","body_html":"\u003cp\u003e\u003cstrong\u003eAdamax — The Modified Semax Analogue\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eN-acetyl Semax carrying an adamantane group\u003c\/li\u003e\n\u003cli\u003eDesigned for greater stability and lipophilicity\u003c\/li\u003e\n\u003cli\u003eNo published research on Adamax itself\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eAdamax is a synthetic derivative of Semax: N-acetylated at one terminus and carrying an adamantane group at the other. Both are established medicinal-chemistry modifications — acetylation to resist enzymatic degradation, and the adamantane cage to raise lipophilicity. It is supplied as a lyophilised powder in a sealed vial for laboratory and in-vitro research.\u003c\/p\u003e\n\u003cp\u003ePepSource supplies Adamax in 5mg vials. Every batch is independently third-party tested for HPLC purity and mass-spectrometry identity, and the certificate of analysis for the batch you receive is published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Lyophilised powder, sealed vial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 5mg vials\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStructure \/ origin:\u003c\/strong\u003e N-acetyl Semax — an ACTH(4-10) analogue — modified with an adamantane group\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store sealed vials cool, dry and away from light; freeze for long-term storage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReconstitution:\u003c\/strong\u003e Bacteriostatic water — see our \u003ca href=\"\/pages\/reconstitution-guide\"\u003ereconstitution guide\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlso available as:\u003c\/strong\u003e \u003ca href=\"\/products\/adamax-nasal-spray\"\u003eAdamax nasal spray\u003c\/a\u003e and \u003ca href=\"\/products\/adamax-pen-refill\"\u003eAdamax pen refill\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIt is worth being direct about the evidence base: there are no peer-reviewed studies on Adamax itself.\u003c\/strong\u003e The compound has no PubMed-indexed literature under its own name, and no published animal or human data. Claims circulating about its potency relative to Semax are not supported by any published work on the compound.\u003c\/p\u003e\n\u003cp\u003eWhat exists is inference, and the inference is reasonable. \u003ca href=\"\/products\/semax\"\u003eSemax\u003c\/a\u003e has been studied extensively in Russia since the 1980s, with published research examining BDNF and NGF expression, cognition and attention, and neuroprotection in models of cerebral ischaemia — our summary of that literature is \u003ca href=\"https:\/\/pepsource.co.uk\/blogs\/research\/semax-dosage-research\"\u003ehere\u003c\/a\u003e. Adamax takes that parent compound and applies two well-understood modifications: N-acetylation, which slows enzymatic breakdown, and an adamantane group, a bulky lipophilic cage found in approved drugs such as amantadine and memantine and used to improve metabolic stability and central nervous system penetration.\u003c\/p\u003e\n\u003cp\u003eThose are sound design premises rather than results. Adamax should be treated as an early, unstudied compound whose behaviour has not been characterised — which is precisely what makes it a subject for laboratory investigation rather than a settled one.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003eEach batch is tested by an independent analytical laboratory for HPLC purity and mass-spectrometry identity before release. Certificates are published per batch and searchable by lot code on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e — you can verify the exact vial you were sent.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-09-20T20:39:53+01:00","created_at":"2026-08-27T13:05:35+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Research Peptide","tags":["powder"],"variants":[{"id":53914603553096,"title":"5mg","option1":"5mg","option2":null,"option3":null,"sku":"AX5","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"55.00","grams":15,"compare_at_price":null,"position":1,"product_id":10232915493192,"created_at":"2026-08-27T13:05:35+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83680629489992,"created_at":"2026-08-27T13:12:44+01:00","position":1,"updated_at":"2026-08-27T13:12:48+01:00","product_id":10232915493192,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/adamax-5mg-lyophilised-peptide-vial-pepsource.jpg?v=1787832768","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["5mg"]}]},{"id":10285809238344,"title":"Lemon Bottle","handle":"lemon-bottle","body_html":"\u003cp\u003e\u003cstrong\u003eLemon Bottle — 10ml sterile solution\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRiboflavin (vitamin B2), bromelain and lecithin\u003c\/li\u003e\n\u003cli\u003eSupplied ready-prepared, no reconstitution needed\u003c\/li\u003e\n\u003cli\u003eSealed 10ml vial\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eLemon Bottle is a ready-prepared sterile solution formulated around naturally derived ingredients — riboflavin (vitamin B2), bromelain and lecithin. It is widely known as a non-surgical lipolytic (\"fat-dissolving\") formulation, and it is supplied here as a sealed 10ml vial, exactly as received, with no mixing or preparation by us.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Ready-prepared sterile solution, sealed vial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolume:\u003c\/strong\u003e 10ml\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComposition:\u003c\/strong\u003e Riboflavin (vitamin B2), bromelain, lecithin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e None required — supplied as a solution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store cool, dry and away from light. Refrigerate once opened\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDispatch:\u003c\/strong\u003e Same day on orders placed before 12pm Monday to Friday\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout the ingredients\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRiboflavin (vitamin B2)\u003c\/strong\u003e — a water-soluble B vitamin, and what gives the solution its yellow colour.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBromelain\u003c\/strong\u003e — a group of proteolytic enzymes originally isolated from pineapple stem.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLecithin\u003c\/strong\u003e — a naturally occurring phospholipid, long used as an emulsifier.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eReturns\u003c\/h2\u003e\n\u003cp\u003eUnopened, sealed vials can be returned within 14 days. Once a seal has been broken the vial cannot be accepted back on hygiene grounds. Faulty, damaged or incorrect items are always put right. See our \u003ca href=\"\/policies\/refund-policy\"\u003erefund policy\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-09-17T23:43:04+01:00","created_at":"2026-09-17T23:42:58+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Research Solution","tags":["lab-supply"],"variants":[{"id":54085388697928,"title":"10ml","option1":"10ml","option2":null,"option3":null,"sku":"LB1","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"17.00","grams":30,"compare_at_price":null,"position":1,"product_id":10285809238344,"created_at":"2026-09-17T23:42:58+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":84022297854280,"created_at":"2026-09-18T01:56:58+01:00","position":1,"updated_at":"2026-09-18T01:57:01+01:00","product_id":10285809238344,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/lemon-bottle-10ml-pepsource.jpg?v=1789693021","width":1254,"height":1254}],"options":[{"name":"Size","position":1,"values":["10ml"]}]},{"id":10283536941384,"title":"Tirzepatide Peptide Pen","handle":"tirzepatide-peptide-pen","body_html":"\u003cp\u003e\u003cstrong\u003eTirzepatide Peptide Pen — available to approved customers\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eA pre-filled peptide pen, ready to use straight from the box. Each pen is filled individually at the point of order from the same material as our \u003ca href=\"\/products\/tirzepatide\"\u003eTirzepatide powder vial\u003c\/a\u003e, and made up with 3ml of bacteriostatic water as standard.\u003c\/p\u003e\n\u003cp\u003eThis product is not listed publicly. It is available only to customers whose accounts have been approved by PepSource.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Pre-filled peptide pen, pen device included\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 40mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSource compound:\u003c\/strong\u003e Tirzepatide — synthetic dual GIP \/ GLP-1 receptor agonist\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e Made up with 3ml bacteriostatic water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Refrigerate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDispatch:\u003c\/strong\u003e Within 48 hours — each pen is filled to order\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eIndependent Lab Test\u003c\/h2\u003e\n\u003cp\u003eTested by Janoshik Analytical in a blind GLP-1 peptide screen (semaglutide, tirzepatide and retatrutide), task #173781, analysed 16 June 2026.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSample tested:\u003c\/strong\u003e Tirzepatide 40mg vial, batch 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured content:\u003c\/strong\u003e 43.60 mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e 99.853%\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eVerify the result yourself at \u003ca href=\"https:\/\/www.janoshik.com\/verify\/\" target=\"_blank\" rel=\"noopener\"\u003ejanoshik.com\/verify\u003c\/a\u003e with the key \u003cstrong\u003eBWGKJBLMTUKW\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-09-16T15:48:22+01:00","created_at":"2026-09-16T15:31:47+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Peptide Pen","tags":["approved-only","made-to-order","peptide-pen"],"variants":[{"id":54076800991560,"title":"40mg","option1":"40mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"180.00","grams":60,"compare_at_price":null,"position":1,"product_id":10283536941384,"created_at":"2026-09-16T15:31:47+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83982936834376,"created_at":"2026-09-16T15:44:12+01:00","position":1,"updated_at":"2026-09-16T15:44:14+01:00","product_id":10283536941384,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/tirzepatide-peptide-pen-40mg-pepsource.jpg?v=1789569854","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["40mg"]}]},{"id":10283536777544,"title":"Tirzepatide","handle":"tirzepatide","body_html":"\u003cp\u003e\u003cstrong\u003eTirzepatide — available to approved customers\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eTirzepatide is a synthetic dual agonist of the GIP and GLP-1 receptors, built on a 39-amino-acid peptide backbone with a C20 fatty-diacid side chain that extends its half-life. It is supplied as a lyophilised powder in a sealed vial for laboratory and in-vitro research.\u003c\/p\u003e\n\u003cp\u003eThis product is not listed publicly. It is available only to customers whose accounts have been approved by PepSource.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Lyophilised powder, sealed vial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 40mg vial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSequence \/ origin:\u003c\/strong\u003e Synthetic dual GIP \/ GLP-1 receptor agonist — 39 amino acids with a C20 fatty-diacid moiety\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e 99.853% by HPLC on independent testing — details below\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store sealed vials cool, dry and away from light; freeze for long-term storage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReconstitution:\u003c\/strong\u003e Bacteriostatic water — see our \u003ca href=\"\/pages\/reconstitution-guide\"\u003ereconstitution guide\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eIndependent Lab Test\u003c\/h2\u003e\n\u003cp\u003eTested by Janoshik Analytical in a blind GLP-1 peptide screen (semaglutide, tirzepatide and retatrutide), task #173781, analysed 16 June 2026.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSample tested:\u003c\/strong\u003e Tirzepatide 40mg vial, batch 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMeasured content:\u003c\/strong\u003e 43.60 mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e 99.853%\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eVerify the result yourself at \u003ca href=\"https:\/\/www.janoshik.com\/verify\/\" target=\"_blank\" rel=\"noopener\"\u003ejanoshik.com\/verify\u003c\/a\u003e with the key \u003cstrong\u003eBWGKJBLMTUKW\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-09-16T15:48:22+01:00","created_at":"2026-09-16T15:31:36+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Research Peptide","tags":["approved-only","powder"],"variants":[{"id":54076800827720,"title":"40mg","option1":"40mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"140.00","grams":20,"compare_at_price":null,"position":1,"product_id":10283536777544,"created_at":"2026-09-16T15:31:36+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83982930805064,"created_at":"2026-09-16T15:43:40+01:00","position":1,"updated_at":"2026-09-16T15:43:43+01:00","product_id":10283536777544,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/tirzepatide-40mg-pepsource.jpg?v=1789569823","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["40mg"]}]},{"id":10277863063880,"title":"GHK-Cu Peptide Pen","handle":"ghk-cu-peptide-pen","body_html":"\u003cp\u003e\u003cstrong\u003eGHK-Cu — The Beauty Peptide\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBoosts collagen\u003c\/li\u003e\n\u003cli\u003eTightens skin\u003c\/li\u003e\n\u003cli\u003eImproves hair health\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eGHK-Cu supplied as a pre-filled peptide pen — the pen device is included, ready to use straight from the box with no separate cartridge or pen to buy. Available in 50mg and 100mg.\u003c\/p\u003e\n\u003cp\u003eEach pen is reconstituted and filled individually at the point of order — we never hold pre-reconstituted stock on a shelf. Every pen in the range is made up with \u003cstrong\u003e3ml of bacteriostatic water\u003c\/strong\u003e as standard, so the concentration is fixed and consistent across every pen you order. Made-to-order items are dispatched within 48 hours.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Pre-filled peptide pen, made to order\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 50mg and 100mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Pen device — no separate pen or cartridge required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReconstitution:\u003c\/strong\u003e Filled with 3ml bacteriostatic water as standard — 50mg in 3ml is approximately 16.67mg\/ml, 100mg in 3ml approximately 33.33mg\/ml\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSource compound:\u003c\/strong\u003e GHK-Cu — \u003ca href=\"\/products\/ghk-cu\"\u003ealso available as a lyophilised powder vial\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlready own a pen?\u003c\/strong\u003e \u003ca href=\"\/products\/ghk-cu-pen-refill\"\u003eOrder the refill cartridge instead\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e Reconstituted and filled to order, never pre-mixed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Refrigerate on arrival; keep away from light\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDispatch:\u003c\/strong\u003e Within 48 hours (made to order)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003eGHK-Cu is a copper tripeptide — glycyl-L-histidyl-L-lysine complexed with copper(II) — found naturally in human plasma, where its concentration declines with age. Published work has examined collagen and elastin synthesis, skin remodelling and wound repair, stimulation of hair follicles, antioxidant activity, and broad modulation of gene expression.\u003c\/p\u003e\n\u003cp\u003eResearch on GHK-Cu includes human topical studies as well as animal and in-vitro work, which places it on firmer ground than most research peptides. Our summary of the published literature is here: \u003ca href=\"https:\/\/pepsource.co.uk\/blogs\/research\/ghk-cu-dosage-research\"\u003eGHK-Cu Dosage: What Studies Have Actually Investigated\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003ePens are filled from the same independently tested material as our powder vials — HPLC purity and mass-spectrometry identity, certified per batch and published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eReturns\u003c\/h2\u003e\n\u003cp\u003eMade-to-order items are prepared individually for you and are exempt from the 14-day cancellation right under the Consumer Contracts Regulations 2013. They cannot be returned or refunded unless faulty, damaged or not as described. See our \u003ca href=\"\/policies\/refund-policy\"\u003erefund policy\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-09-12T21:15:11+01:00","created_at":"2026-09-12T21:11:19+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PepSource","product_type":"Peptide Pen","tags":["made-to-order","peptide-pen"],"variants":[{"id":54047740526920,"title":"50mg","option1":"50mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":{"id":83889398251848,"product_id":10277863063880,"position":1,"created_at":"2026-09-12T21:14:44+01:00","updated_at":"2026-09-12T21:14:47+01:00","alt":"PepSource GHK-Cu peptide pen, 50mg pre-filled research peptide pen","width":1254,"height":1254,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/ghk-cu-peptide-pen-50mg-pepsource.jpg?v=1789244087","variant_ids":[54047740526920]},"available":true,"price":"55.00","grams":0,"compare_at_price":null,"position":1,"product_id":10277863063880,"created_at":"2026-09-12T21:11:20+01:00","updated_at":"2026-09-24T08:53:48+01:00"},{"id":54047745605960,"title":"100mg","option1":"100mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":{"id":83889398284616,"product_id":10277863063880,"position":2,"created_at":"2026-09-12T21:14:44+01:00","updated_at":"2026-09-12T21:14:47+01:00","alt":"PepSource GHK-Cu peptide pen, 100mg pre-filled research peptide pen","width":1254,"height":1254,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/ghk-cu-peptide-pen-100mg-pepsource.jpg?v=1789244087","variant_ids":[54047745605960]},"available":true,"price":"75.00","grams":0,"compare_at_price":null,"position":2,"product_id":10277863063880,"created_at":"2026-09-12T21:11:31+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83889398251848,"created_at":"2026-09-12T21:14:44+01:00","position":1,"updated_at":"2026-09-12T21:14:47+01:00","product_id":10277863063880,"variant_ids":[54047740526920],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/ghk-cu-peptide-pen-50mg-pepsource.jpg?v=1789244087","width":1254,"height":1254},{"id":83889398284616,"created_at":"2026-09-12T21:14:44+01:00","position":2,"updated_at":"2026-09-12T21:14:47+01:00","product_id":10277863063880,"variant_ids":[54047745605960],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/ghk-cu-peptide-pen-100mg-pepsource.jpg?v=1789244087","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["50mg","100mg"]}]},{"id":10260678771016,"title":"PepSource Gift Card","handle":"pepsource-gift-card","body_html":"\u003cp\u003eNot sure which peptide to pick? A PepSource gift card lets them choose for themselves.\u003c\/p\u003e\u003cp\u003eThe code is emailed the moment your order is placed, and it never expires. It can be spent across as many orders as you like until the balance runs out, and it covers delivery as well as products.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDelivered by email, usually within minutes\u003c\/li\u003e\n\u003cli\u003eRedeemable against anything in the PepSource range\u003c\/li\u003e\n\u003cli\u003eSpend it in one go or across several orders\u003c\/li\u003e\n\u003cli\u003eNo expiry date\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAll products are supplied strictly for laboratory research use only. Not for human or veterinary consumption.\u003c\/p\u003e","published_at":"2026-09-04T00:43:44+01:00","created_at":"2026-09-04T00:27:33+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Gift Card","tags":["gift-card"],"variants":[{"id":53980594045256,"title":"£25","option1":"£25","option2":null,"option3":null,"sku":null,"requires_shipping":false,"taxable":false,"featured_image":null,"available":true,"price":"25.00","grams":0,"compare_at_price":null,"position":1,"product_id":10260678771016,"created_at":"2026-09-04T00:27:33+01:00","updated_at":"2026-09-24T08:53:48+01:00"},{"id":53980594143560,"title":"£50","option1":"£50","option2":null,"option3":null,"sku":null,"requires_shipping":false,"taxable":false,"featured_image":null,"available":true,"price":"50.00","grams":0,"compare_at_price":null,"position":2,"product_id":10260678771016,"created_at":"2026-09-04T00:27:49+01:00","updated_at":"2026-09-24T08:53:48+01:00"},{"id":53980594176328,"title":"£100","option1":"£100","option2":null,"option3":null,"sku":null,"requires_shipping":false,"taxable":false,"featured_image":null,"available":true,"price":"100.00","grams":0,"compare_at_price":null,"position":3,"product_id":10260678771016,"created_at":"2026-09-04T00:27:49+01:00","updated_at":"2026-09-24T08:53:48+01:00"},{"id":53980594209096,"title":"£200","option1":"£200","option2":null,"option3":null,"sku":null,"requires_shipping":false,"taxable":false,"featured_image":null,"available":true,"price":"200.00","grams":0,"compare_at_price":null,"position":4,"product_id":10260678771016,"created_at":"2026-09-04T00:27:49+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83776837288264,"created_at":"2026-09-04T00:54:41+01:00","position":1,"updated_at":"2026-09-04T00:54:44+01:00","product_id":10260678771016,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/pepsource-gift-card-square.jpg?v=1788479684","width":1492,"height":1492}],"options":[{"name":"Denomination","position":1,"values":["£25","£50","£100","£200"]}]},{"id":10232915722568,"title":"Adamax Nasal Spray","handle":"adamax-nasal-spray","body_html":"\u003cp\u003e\u003cstrong\u003eAdamax — The Modified Semax Analogue\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eN-acetyl Semax carrying an adamantane group\u003c\/li\u003e\n\u003cli\u003eDesigned for greater stability and lipophilicity\u003c\/li\u003e\n\u003cli\u003eNo published research on Adamax itself\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eAdamax nasal spray, prepared as a metered intranasal solution for laboratory research. Available in 5mg.\u003c\/p\u003e\n\u003cp\u003eEach unit is reconstituted and filled individually at the point of order — we never hold pre-reconstituted stock on a shelf. Made-to-order items are dispatched within 48 hours.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Metered nasal spray, made to order\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 5mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSource compound:\u003c\/strong\u003e Adamax — \u003ca href=\"\/products\/adamax\"\u003ealso available as a lyophilised powder vial\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e Reconstituted and filled to order, never pre-mixed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Refrigerate on arrival; keep away from light\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDispatch:\u003c\/strong\u003e Within 48 hours (made to order)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy the intranasal format\u003c\/h2\u003e\n\u003cp\u003eAdamax is handled intranasally in research settings, mirroring how its parent compound \u003ca href=\"\/products\/semax\"\u003eSemax\u003c\/a\u003e is delivered. Intranasal administration gives direct nose-to-brain transport along the olfactory and trigeminal nerve pathways, partially bypassing the blood-brain barrier and avoiding the first-pass metabolism that breaks down small peptides taken orally.\u003c\/p\u003e\n\u003cp\u003eWorth noting precisely: that rationale is inherited from the Semax literature, which is overwhelmingly intranasal. No route-of-administration study has been published on Adamax itself.\u003c\/p\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThere are no peer-reviewed studies on Adamax itself.\u003c\/strong\u003e The compound has no PubMed-indexed literature under its own name, and no published animal or human data. Claims about its potency relative to Semax are not supported by published work on the compound.\u003c\/p\u003e\n\u003cp\u003eThe design rationale is inference from two well-understood sources: Semax, studied extensively in Russia since the 1980s for its influence on BDNF and NGF expression, cognition and neuroprotection; and adamantane modification, a bulky lipophilic group used in approved drugs such as amantadine and memantine to improve metabolic stability and central nervous system penetration. Sound premises, not results.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003eSprays are prepared from the same independently tested material as our powder vials — HPLC purity and mass-spectrometry identity, certified per batch and published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eReturns\u003c\/h2\u003e\n\u003cp\u003eMade-to-order items are prepared individually for you and are exempt from the 14-day cancellation right under the Consumer Contracts Regulations 2013. They cannot be returned or refunded unless faulty, damaged or not as described. See our \u003ca href=\"\/policies\/refund-policy\"\u003erefund policy\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-08-27T13:06:43+01:00","created_at":"2026-08-27T13:06:03+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Nasal Spray","tags":["made-to-order","nasal-spray"],"variants":[{"id":53914603913544,"title":"5mg","option1":"5mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"65.00","grams":50,"compare_at_price":null,"position":1,"product_id":10232915722568,"created_at":"2026-08-27T13:06:04+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83680629522760,"created_at":"2026-08-27T13:12:45+01:00","position":1,"updated_at":"2026-08-27T13:12:48+01:00","product_id":10232915722568,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/adamax-nasal-spray-5mg-pepsource.jpg?v=1787832768","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["5mg"]}]},{"id":10174441455944,"title":"Glutathione Pen Refill Kit","handle":"glutathione-pen-refill","body_html":"\u003cp\u003e\u003cstrong\u003eGlutathione — The Master Antioxidant\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports antioxidant defence\u003c\/li\u003e\n\u003cli\u003eSupports detoxification\u003c\/li\u003e\n\u003cli\u003eSupports skin brightness\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThis product is supplied as a kit, not as pre-filled cartridges.\u003c\/strong\u003e Everything needed to prepare three pen cartridges is included — the powder is shipped sealed and lyophilised, and is reconstituted by you at the point of use rather than by us before dispatch.\u003c\/p\u003e\n\u003cp\u003eGlutathione is markedly less stable in solution than as a lyophilised powder, and transit conditions cannot be controlled. Supplying it dry removes that variable entirely: the material arrives in the state it was tested in, and the clock only starts when you mix it. Available in 1500mg.\u003c\/p\u003e\n\n\u003ch2\u003eWhat's in the kit\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 × Glutathione vial\u003c\/strong\u003e — lyophilised powder, 1500mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 × bacteriostatic water, 10ml bottle\u003c\/strong\u003e — for reconstitution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3 × pen cartridges\u003c\/strong\u003e — empty, ready to fill\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1 × insulin needle\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe cartridges fit our peptide pens. Our \u003ca href=\"\/pages\/peptide-calculator\"\u003ereconstitution calculator\u003c\/a\u003e will work out the concentration for the water volume you use.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Unmixed kit — powder vial, 10ml diluent, three cartridges and needle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 1500mg total\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSource compound:\u003c\/strong\u003e Glutathione — \u003ca href=\"\/products\/glutathione\"\u003ealso available as a lyophilised powder vial\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e Supplied dry; reconstituted by you at the point of use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store the sealed vial cool, dry and away from light. Glutathione is markedly less stable once in solution, so reconstitute only when you are ready to use it and refrigerate the filled cartridges\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDispatch:\u003c\/strong\u003e Within 48 hours — each kit is assembled to order\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy three cartridges\u003c\/h2\u003e\n\u003cp\u003eA standard pen cartridge holds 3ml. Packing 1500mg into that volume would mean 500mg\/ml, which is beyond what glutathione will reliably hold in solution — so the kit gives you three cartridges and a 10ml bottle of water, enough to spread the full amount across all three at a concentration that stays dissolved. The total is the same 1500mg; it is simply prepared in three parts rather than one.\u003c\/p\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003eGlutathione is a tripeptide of glutamate, cysteine and glycine, and the body's principal intracellular antioxidant. Published research has examined its scavenging of free radicals and role in oxidative stress; phase II detoxification, where it conjugates to toxins to make them water-soluble for excretion; maintenance of cellular redox balance; and skin pigmentation, where studies have examined its effect on melanin synthesis.\u003c\/p\u003e\n\u003cp\u003eResearch on glutathione includes both human studies and animal models.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003eKits contain the same independently tested powder as our standalone vials — HPLC purity and mass-spectrometry identity, certified per batch and published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eReturns\u003c\/h2\u003e\n\u003cp\u003eKits are assembled to order. An unopened kit with all seals intact can be returned within 14 days — but once the vial, water or needle seal has been broken it cannot be accepted back on hygiene grounds, and anything already reconstituted cannot be returned. Faulty, damaged or incorrect items are always put right. See our \u003ca href=\"\/policies\/refund-policy\"\u003erefund policy\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-08-23T17:15:46+01:00","created_at":"2026-07-27T11:05:33+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Pen Refill","tags":["kits"],"variants":[{"id":53600241516872,"title":"1500mg — 3 cartridges","option1":"1500mg — 3 cartridges","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"49.00","grams":60,"compare_at_price":null,"position":1,"product_id":10174441455944,"created_at":"2026-07-27T11:05:33+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83559241154888,"created_at":"2026-08-19T15:50:39+01:00","position":1,"updated_at":"2026-08-19T15:50:41+01:00","product_id":10174441455944,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/glutathione-pen-refill-pepsource.jpg?v=1787151041","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["1500mg — 3 cartridges"]}]},{"id":10220456771912,"title":"DSIP Pen Refill Kit","handle":"dsip-pen-refill","body_html":"\u003cp\u003e\u003cstrong\u003eDSIP — The Sleep Peptide\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStudied for delta-wave sleep activity\u003c\/li\u003e\n\u003cli\u003eNonapeptide that crosses the blood–brain barrier\u003c\/li\u003e\n\u003cli\u003eAlso investigated in stress and analgesia research\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThis product is supplied as a kit, not as a pre-filled cartridge.\u003c\/strong\u003e Everything needed to prepare a pen cartridge is included — the powder is shipped sealed and lyophilised, and is reconstituted by you at the point of use rather than by us before dispatch.\u003c\/p\u003e\n\u003cp\u003eA reconstituted cartridge is a liquid preparation with a limited stable life, and transit conditions cannot be controlled. Supplying the compound dry removes that variable entirely: the material arrives in the state it was tested in, and the clock only starts when you mix it. Available in 5mg.\u003c\/p\u003e\n\n\u003ch2\u003eWhat's in the kit\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 × DSIP vial\u003c\/strong\u003e — lyophilised powder, 5mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 × bacteriostatic water, 3ml\u003c\/strong\u003e — for reconstitution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 × pen cartridge\u003c\/strong\u003e — empty, ready to fill\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1 × insulin needle\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe cartridge fits our peptide pens. Our \u003ca href=\"\/pages\/peptide-calculator\"\u003ereconstitution calculator\u003c\/a\u003e will work out the concentration and draw volume for the water volume you use.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Unmixed kit — powder vial, diluent, cartridge and needle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 5mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSource compound:\u003c\/strong\u003e DSIP — \u003ca href=\"\/products\/dsip\"\u003ealso available as a lyophilised powder vial\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e Supplied dry; reconstituted by you at the point of use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store the sealed vial cool, dry and away from light. Refrigerate once reconstituted\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDispatch:\u003c\/strong\u003e Within 48 hours — each kit is assembled to order\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003eDSIP was isolated in 1977 from the cerebral venous blood of rabbits undergoing induced slow-wave sleep, and takes its name from the delta-wave EEG activity observed in those experiments. Early human work examined its influence on disturbed sleep, with published studies reporting shorter sleep onset latency and improved sleep efficiency.\u003c\/p\u003e\n\u003cp\u003eResearch interest has since extended beyond sleep, into stress-axis and corticotropin regulation, thermoregulation, analgesia, opioid withdrawal models and antioxidant activity — which is why the literature often describes DSIP as multifunctional rather than sleep-specific.\u003c\/p\u003e\n\u003cp\u003eIt is worth being clear about the state of the evidence: despite the name, DSIP's status as an endogenous sleep factor remains unresolved. No corresponding gene, precursor protein or receptor has been identified, and findings across studies have been inconsistent — a 2006 review in the \u003cem\u003eJournal of Neurochemistry\u003c\/em\u003e characterised it as a still-unresolved riddle. DSIP remains an active subject of laboratory investigation rather than a settled one.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003eKits contain the same independently tested powder as our standalone vials — HPLC purity and mass-spectrometry identity, certified per batch and published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eReturns\u003c\/h2\u003e\n\u003cp\u003eKits are assembled to order. An unopened kit with all seals intact can be returned within 14 days — but once the vial, water or needle seal has been broken it cannot be accepted back on hygiene grounds, and anything already reconstituted cannot be returned. Faulty, damaged or incorrect items are always put right. See our \u003ca href=\"\/policies\/refund-policy\"\u003erefund policy\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-08-22T00:27:23+01:00","created_at":"2026-08-22T00:27:04+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Pen Refill","tags":["kits"],"variants":[{"id":53882832912712,"title":"5mg","option1":"5mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"32.00","grams":20,"compare_at_price":null,"position":1,"product_id":10220456771912,"created_at":"2026-08-22T00:27:04+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83592709243208,"created_at":"2026-08-22T00:27:22+01:00","position":1,"updated_at":"2026-08-22T00:27:24+01:00","product_id":10220456771912,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/5a64486d9586ac1716bed874e1b01020d6bc23ce6ec829e6a3daa118a8908402_b43626a8-b9c2-4946-b575-e6068a22561b.jpg?v=1787354844","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["5mg"]}]},{"id":10220455625032,"title":"DSIP Nasal Spray","handle":"dsip-nasal-spray","body_html":"\u003cp\u003e\u003cstrong\u003eDSIP — The Sleep Peptide\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStudied for delta-wave sleep activity\u003c\/li\u003e\n\u003cli\u003eNonapeptide that crosses the blood–brain barrier\u003c\/li\u003e\n\u003cli\u003eAlso investigated in stress and analgesia research\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eDSIP nasal spray, prepared as a metered intranasal solution for laboratory research. Available in 5mg.\u003c\/p\u003e\n\u003cp\u003eEach unit is reconstituted and filled individually at the point of order — we never hold pre-reconstituted stock on a shelf. Made-to-order items are dispatched within 48 hours.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Metered nasal spray, made to order\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 5mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSource compound:\u003c\/strong\u003e DSIP — \u003ca href=\"\/products\/dsip\"\u003ealso available as a lyophilised powder vial\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSequence:\u003c\/strong\u003e Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu (WAGGDASGE) — linear nonapeptide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e Reconstituted and filled to order, never pre-mixed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Refrigerate on arrival; keep away from light\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDispatch:\u003c\/strong\u003e Within 48 hours (made to order)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy the intranasal format\u003c\/h2\u003e\n\u003cp\u003eDSIP is a small, unmodified nonapeptide with free amino and carboxyl termini, which makes it a poor candidate for oral delivery — peptides of this class are rapidly degraded by gastrointestinal proteases and first-pass metabolism before reaching circulation. Intranasal delivery avoids that route entirely, and offers direct nose-to-brain transport along the olfactory and trigeminal nerve pathways, which partially bypasses the blood-brain barrier.\u003c\/p\u003e\n\u003cp\u003eIn DSIP's case that rationale is worth stating precisely: the peptide is reported to cross the blood-brain barrier, and the published human studies on it used intravenous infusion rather than the intranasal route. Intranasal preparation is used in research settings for the practical reasons above, not because the original clinical literature was built on it.\u003c\/p\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003eDSIP was isolated in 1977 from the cerebral venous blood of rabbits undergoing induced slow-wave sleep, and takes its name from the delta-wave EEG activity observed in those experiments. Early human work examined its influence on disturbed sleep, with published studies reporting shorter sleep onset latency and improved sleep efficiency.\u003c\/p\u003e\n\u003cp\u003eResearch interest has since extended beyond sleep, into stress-axis and corticotropin regulation, thermoregulation, analgesia, opioid withdrawal models and antioxidant activity — which is why the literature often describes DSIP as multifunctional rather than sleep-specific.\u003c\/p\u003e\n\u003cp\u003eIt is worth being clear about the state of the evidence: despite the name, DSIP's status as an endogenous sleep factor remains unresolved. No corresponding gene, precursor protein or receptor has been identified, and findings across studies have been inconsistent — a 2006 review in the \u003cem\u003eJournal of Neurochemistry\u003c\/em\u003e characterised it as a still-unresolved riddle. DSIP remains an active subject of laboratory investigation rather than a settled one.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003eSprays are prepared from the same independently tested material as our powder vials — HPLC purity and mass-spectrometry identity, certified per batch and published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eReturns\u003c\/h2\u003e\n\u003cp\u003eMade-to-order items are prepared individually for you and are exempt from the 14-day cancellation right under the Consumer Contracts Regulations 2013. They cannot be returned or refunded unless faulty, damaged or not as described. See our \u003ca href=\"\/policies\/refund-policy\"\u003erefund policy\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-08-22T00:22:04+01:00","created_at":"2026-08-22T00:21:50+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Nasal Spray","tags":["made-to-order","nasal-spray"],"variants":[{"id":53882811023688,"title":"5mg","option1":"5mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"28.00","grams":50,"compare_at_price":null,"position":1,"product_id":10220455625032,"created_at":"2026-08-22T00:21:50+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83592708784456,"created_at":"2026-08-22T00:26:33+01:00","position":1,"updated_at":"2026-08-22T00:26:37+01:00","product_id":10220455625032,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/dsip-nasal-spray-5mg-pepsource.png?v=1787354797","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["5mg"]}]},{"id":10220428919112,"title":"DSIP","handle":"dsip","body_html":"\u003cp\u003e\u003cstrong\u003eDSIP — The Sleep Peptide\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStudied for delta-wave sleep activity\u003c\/li\u003e\n\u003cli\u003eNonapeptide that crosses the blood–brain barrier\u003c\/li\u003e\n\u003cli\u003eAlso investigated in stress and analgesia research\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eDSIP (delta sleep-inducing peptide) is a nonapeptide first isolated in 1977 from the cerebral venous blood of rabbits undergoing induced slow-wave sleep. It carries the sequence Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu and is supplied as a lyophilised powder in a sealed vial for laboratory and in-vitro research.\u003c\/p\u003e\n\u003cp\u003ePepSource supplies DSIP in 5mg vials. Every batch is independently third-party tested for HPLC purity and mass-spectrometry identity, and the certificate of analysis for the batch you receive is published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Lyophilised powder, sealed vial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 5mg vial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSequence:\u003c\/strong\u003e Trp-Ala-Gly-Gly-Asp-Ala-Ser-Gly-Glu (WAGGDASGE) — linear nonapeptide, no disulfide bonds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMolecular formula:\u003c\/strong\u003e C\u003csub\u003e35\u003c\/sub\u003eH\u003csub\u003e48\u003c\/sub\u003eN\u003csub\u003e10\u003c\/sub\u003eO\u003csub\u003e15\u003c\/sub\u003e — molecular weight approximately 848.8 Da\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAS number:\u003c\/strong\u003e 62568-57-4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store sealed vials cool, dry and away from light; freeze for long-term storage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReconstitution:\u003c\/strong\u003e Bacteriostatic water — see our \u003ca href=\"\/pages\/reconstitution-guide\"\u003ereconstitution guide\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003eDSIP takes its name from the delta-wave EEG activity observed after infusion in the original rabbit experiments. Early human work examined its influence on disturbed sleep, with published studies reporting shorter sleep onset latency and improved sleep efficiency, including effects measured on the following night rather than only immediately after administration.\u003c\/p\u003e\n\u003cp\u003eResearch interest has since extended well beyond sleep. Published work has examined DSIP in relation to stress-axis and corticotropin regulation, thermoregulation, analgesia, opioid withdrawal models and antioxidant activity — which is why the literature often describes it as multifunctional rather than sleep-specific.\u003c\/p\u003e\n\u003cp\u003eIt is worth being clear about the state of the evidence: despite the name, DSIP's status as an endogenous sleep factor remains unresolved. No corresponding gene, precursor protein or receptor has been identified, and findings across studies have been inconsistent — a 2006 review in the \u003cem\u003eJournal of Neurochemistry\u003c\/em\u003e characterised it as a still-unresolved riddle. DSIP remains an active subject of laboratory investigation rather than a settled one.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003eEach batch is tested by an independent analytical laboratory for HPLC purity and mass-spectrometry identity before release. Certificates are published per batch and searchable by lot code on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e — you can verify the exact vial you were sent.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-08-21T22:38:26+01:00","created_at":"2026-08-21T22:38:18+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Research Peptide","tags":["powder"],"variants":[{"id":53882685358408,"title":"5mg","option1":"5mg","option2":null,"option3":null,"sku":"DS5","requires_shipping":true,"taxable":true,"featured_image":{"id":83592285946184,"product_id":10220428919112,"position":1,"created_at":"2026-08-21T23:12:37+01:00","updated_at":"2026-08-21T23:12:41+01:00","alt":"PepSource DSIP 5mg vial, lyophilised delta sleep-inducing peptide powder for research use","width":1254,"height":1254,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/DSIP_5_mg.png?v=1787350361","variant_ids":[53882685358408]},"available":true,"price":"23.00","grams":15,"compare_at_price":null,"position":1,"product_id":10220428919112,"created_at":"2026-08-21T22:38:18+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83592285946184,"created_at":"2026-08-21T23:12:37+01:00","position":1,"updated_at":"2026-08-21T23:12:41+01:00","product_id":10220428919112,"variant_ids":[53882685358408],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/DSIP_5_mg.png?v=1787350361","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["5mg"]}]},{"id":10217224700232,"title":"Wolverine Stack Peptide Pen","handle":"wolverine-stack-peptide-pen","body_html":"\u003cp\u003e\u003cstrong\u003eWolverine Stack — The Recovery Stack\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCombines BPC-157 and TB-500\u003c\/li\u003e\n\u003cli\u003eSupports tissue repair\u003c\/li\u003e\n\u003cli\u003eTwo repair mechanisms in one pen\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eWolverine Stack supplied as a pre-filled peptide pen — an equal blend of BPC-157 and TB-500, with the pen device included, ready to use straight from the box. Available in 20mg.\u003c\/p\u003e\n\u003cp\u003eEach pen is reconstituted and filled individually at the point of order — we never hold pre-reconstituted stock on a shelf. Every pen in the range is made up with \u003cstrong\u003e3ml of bacteriostatic water\u003c\/strong\u003e as standard, so the concentration is fixed and consistent across every pen you order. Made-to-order items are dispatched within 48 hours.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Pre-filled peptide pen, made to order\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 20mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComposition:\u003c\/strong\u003e Equal parts BPC-157 and TB-500\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Pen device — no separate pen or cartridge required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReconstitution:\u003c\/strong\u003e Filled with 3ml bacteriostatic water as standard — 20mg in 3ml is approximately 6.67mg\/ml\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSource compound:\u003c\/strong\u003e Wolverine Stack — \u003ca href=\"\/products\/bpc-157-tb-500-blend\"\u003ealso available as a lyophilised powder vial\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlready own a pen?\u003c\/strong\u003e \u003ca href=\"\/products\/bpc-157-tb-500-blend-pen-refill\"\u003eOrder the refill cartridge instead\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e Reconstituted and filled to order, never pre-mixed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Refrigerate on arrival; keep away from light\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDispatch:\u003c\/strong\u003e Within 48 hours (made to order)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003eThe Wolverine Stack pairs two peptides studied in tissue repair by different mechanisms. BPC-157 has been examined for tendon, ligament and muscle repair, gut mucosal integrity and angiogenesis. TB-500, a synthetic fragment of the naturally occurring protein Thymosin Beta-4, has been studied for actin regulation, migration of repair cells to injury sites, new blood-vessel formation and cardiac tissue repair.\u003c\/p\u003e\n\u003cp\u003eResearch on both compounds is predominantly in animal models and in-vitro studies; human clinical data is limited. Our summary of the published literature is here: \u003ca href=\"https:\/\/pepsource.co.uk\/blogs\/research\/tb-500-dosage-research\"\u003eTB-500 Dosage: What Studies Have Actually Investigated\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003ePens are filled from the same independently tested material as our powder vials — HPLC purity and mass-spectrometry identity, certified per batch and published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eReturns\u003c\/h2\u003e\n\u003cp\u003eMade-to-order items are prepared individually for you and are exempt from the 14-day cancellation right under the Consumer Contracts Regulations 2013. They cannot be returned or refunded unless faulty, damaged or not as described. See our \u003ca href=\"\/policies\/refund-policy\"\u003erefund policy\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-08-19T15:15:16+01:00","created_at":"2026-08-19T14:57:19+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Peptide Pen","tags":["made-to-order","peptide-pen"],"variants":[{"id":53858341847368,"title":"20mg","option1":"20mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"80.00","grams":60,"compare_at_price":null,"position":1,"product_id":10217224700232,"created_at":"2026-08-19T14:57:19+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83558904004936,"created_at":"2026-08-19T15:12:44+01:00","position":1,"updated_at":"2026-08-19T15:12:48+01:00","product_id":10217224700232,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/wolverine-stack-peptide-pen-20mg-pepsource.jpg?v=1787148768","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["20mg"]}]},{"id":10217224634696,"title":"KLOW Blend Peptide Pen","handle":"klow-blend-peptide-pen","body_html":"\u003cp\u003e\u003cstrong\u003eKLOW Blend — The Complete Repair Blend\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCombines BPC-157, GHK-Cu, TB-500 and KPV\u003c\/li\u003e\n\u003cli\u003eSupports skin and tissue repair\u003c\/li\u003e\n\u003cli\u003eAdds inflammatory support\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eKLOW Blend supplied as a pre-filled peptide pen — the pen device is included, ready to use straight from the box with no separate cartridge or pen to buy. Available in 80mg.\u003c\/p\u003e\n\u003cp\u003eEach pen is reconstituted and filled individually at the point of order — we never hold pre-reconstituted stock on a shelf. Every pen in the range is made up with \u003cstrong\u003e3ml of bacteriostatic water\u003c\/strong\u003e as standard, so the concentration is fixed and consistent across every pen you order. Made-to-order items are dispatched within 48 hours.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Pre-filled peptide pen, made to order\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 80mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComposition:\u003c\/strong\u003e BPC-157 10mg, GHK-Cu 50mg, TB-500 10mg, KPV 10mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Pen device — no separate pen or cartridge required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReconstitution:\u003c\/strong\u003e Filled with 3ml bacteriostatic water as standard — 80mg in 3ml is approximately 26.67mg\/ml\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSource compound:\u003c\/strong\u003e KLOW Blend — \u003ca href=\"\/products\/klow-blend\"\u003ealso available as a lyophilised powder vial\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlready own a pen?\u003c\/strong\u003e \u003ca href=\"\/products\/klow-blend-pen-refill\"\u003eOrder the refill cartridge instead\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e Reconstituted and filled to order, never pre-mixed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Refrigerate on arrival; keep away from light\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDispatch:\u003c\/strong\u003e Within 48 hours (made to order)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003eKLOW takes the three peptides in our GLOW Blend and adds KPV. BPC-157 has been examined for tendon, ligament and muscle repair and gut mucosal integrity. TB-500, a fragment of Thymosin Beta-4, has been studied for actin regulation and cell migration to injury sites. GHK-Cu, a copper tripeptide found naturally in human plasma, has been examined for collagen synthesis and skin remodelling. KPV, the C-terminal tripeptide fragment of alpha-MSH, has been studied for anti-inflammatory signalling and in models of intestinal inflammation.\u003c\/p\u003e\n\u003cp\u003eResearch on BPC-157, TB-500 and KPV is predominantly in animal models and in-vitro studies; human clinical data is limited. GHK-Cu has additionally been studied in human topical trials.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003ePens are filled from the same independently tested material as our powder vials — HPLC purity and mass-spectrometry identity, certified per batch and published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eReturns\u003c\/h2\u003e\n\u003cp\u003eMade-to-order items are prepared individually for you and are exempt from the 14-day cancellation right under the Consumer Contracts Regulations 2013. They cannot be returned or refunded unless faulty, damaged or not as described. See our \u003ca href=\"\/policies\/refund-policy\"\u003erefund policy\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-08-19T15:15:16+01:00","created_at":"2026-08-19T14:57:18+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Peptide Pen","tags":["best-seller","made-to-order","peptide-pen"],"variants":[{"id":53858341781832,"title":"80mg","option1":"80mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"100.00","grams":60,"compare_at_price":null,"position":1,"product_id":10217224634696,"created_at":"2026-08-19T14:57:18+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83558903939400,"created_at":"2026-08-19T15:12:44+01:00","position":1,"updated_at":"2026-08-19T15:12:47+01:00","product_id":10217224634696,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/klow-blend-peptide-pen-80mg-pepsource.jpg?v=1787148767","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["80mg"]}]},{"id":10217224601928,"title":"Retatrutide Peptide Pen","handle":"retatrutide-peptide-pen","body_html":"\u003cp\u003e\u003cstrong\u003eRetatrutide — The Metabolic Peptide\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports weight reduction\u003c\/li\u003e\n\u003cli\u003eSupports glycaemic control\u003c\/li\u003e\n\u003cli\u003eReduces hepatic fat\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eRetatrutide supplied as a pre-filled peptide pen — the pen device is included, ready to use straight from the box with no separate cartridge or pen to buy. Available in 20mg and 40mg.\u003c\/p\u003e\n\u003cp\u003eEach pen is reconstituted and filled individually at the point of order — we never hold pre-reconstituted stock on a shelf. Every pen in the range is made up with \u003cstrong\u003e3ml of bacteriostatic water\u003c\/strong\u003e as standard, so the concentration is fixed and consistent across every pen you order. Made-to-order items are dispatched within 48 hours.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Pre-filled peptide pen, made to order\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 20mg and 40mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Pen device — no separate pen or cartridge required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReconstitution:\u003c\/strong\u003e Filled with 3ml bacteriostatic water as standard — 20mg in 3ml is approximately 6.67mg\/ml, 40mg in 3ml approximately 13.33mg\/ml\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSource compound:\u003c\/strong\u003e Retatrutide — \u003ca href=\"\/products\/retatrutide\"\u003ealso available as a lyophilised powder vial\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlready own a pen?\u003c\/strong\u003e \u003ca href=\"\/products\/retatrutide-pen-refill\"\u003eOrder the refill cartridge instead\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e Reconstituted and filled to order, never pre-mixed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Refrigerate on arrival; keep away from light\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDispatch:\u003c\/strong\u003e Within 48 hours (made to order)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003eRetatrutide is a triple agonist, acting on the GLP-1, GIP and glucagon receptors simultaneously where earlier compounds in its class targeted one or two. Published Phase 2 trial results have examined body-weight reduction, glycaemic control and hepatic fat content, with the triple-receptor mechanism reported to produce greater effect than single or dual agonists. Phase 3 trials are ongoing.\u003c\/p\u003e\n\u003cp\u003eRetatrutide has been studied in human clinical trials. Our summary of the published literature is here: \u003ca href=\"https:\/\/pepsource.co.uk\/blogs\/research\/retatrutide-dosage-research\"\u003eRetatrutide Dosage: What Studies Have Investigated\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003ePens are filled from the same independently tested material as our powder vials — HPLC purity and mass-spectrometry identity, certified per batch and published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eReturns\u003c\/h2\u003e\n\u003cp\u003eMade-to-order items are prepared individually for you and are exempt from the 14-day cancellation right under the Consumer Contracts Regulations 2013. They cannot be returned or refunded unless faulty, damaged or not as described. See our \u003ca href=\"\/policies\/refund-policy\"\u003erefund policy\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-08-19T15:15:16+01:00","created_at":"2026-08-19T14:57:17+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Peptide Pen","tags":["best-seller","made-to-order","peptide-pen"],"variants":[{"id":53858341749064,"title":"20mg","option1":"20mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":{"id":83558903873864,"product_id":10217224601928,"position":1,"created_at":"2026-08-19T15:12:44+01:00","updated_at":"2026-08-19T15:12:47+01:00","alt":"PepSource Retatrutide peptide pen, 20mg pre-filled research peptide pen","width":1254,"height":1254,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/retatrutide-peptide-pen-20mg-pepsource.jpg?v=1787148767","variant_ids":[53858341749064]},"available":true,"price":"100.00","grams":60,"compare_at_price":null,"position":1,"product_id":10217224601928,"created_at":"2026-08-19T14:57:17+01:00","updated_at":"2026-09-24T08:53:48+01:00"},{"id":53858342797640,"title":"40mg","option1":"40mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":{"id":83558903906632,"product_id":10217224601928,"position":2,"created_at":"2026-08-19T15:12:44+01:00","updated_at":"2026-08-19T15:12:47+01:00","alt":"PepSource Retatrutide peptide pen, 40mg pre-filled research peptide pen","width":1254,"height":1254,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/retatrutide-peptide-pen-40mg-pepsource.jpg?v=1787148767","variant_ids":[53858342797640]},"available":true,"price":"160.00","grams":60,"compare_at_price":null,"position":2,"product_id":10217224601928,"created_at":"2026-08-19T14:57:55+01:00","updated_at":"2026-09-24T08:53:48+01:00"},{"id":53877478457672,"title":"60mg","option1":"60mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":{"id":83589546574152,"product_id":10217224601928,"position":3,"created_at":"2026-08-21T17:15:37+01:00","updated_at":"2026-08-21T17:15:40+01:00","alt":"PepSource Retatrutide peptide pen, 60mg pre-filled research peptide pen","width":1254,"height":1254,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/retatrutide_60_mg_pen.jpg?v=1787328940","variant_ids":[53877478457672]},"available":true,"price":"235.00","grams":60,"compare_at_price":null,"position":3,"product_id":10217224601928,"created_at":"2026-08-21T00:24:18+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83558903873864,"created_at":"2026-08-19T15:12:44+01:00","position":1,"updated_at":"2026-08-19T15:12:47+01:00","product_id":10217224601928,"variant_ids":[53858341749064],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/retatrutide-peptide-pen-20mg-pepsource.jpg?v=1787148767","width":1254,"height":1254},{"id":83558903906632,"created_at":"2026-08-19T15:12:44+01:00","position":2,"updated_at":"2026-08-19T15:12:47+01:00","product_id":10217224601928,"variant_ids":[53858342797640],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/retatrutide-peptide-pen-40mg-pepsource.jpg?v=1787148767","width":1254,"height":1254},{"id":83589546574152,"created_at":"2026-08-21T17:15:37+01:00","position":3,"updated_at":"2026-08-21T17:15:40+01:00","product_id":10217224601928,"variant_ids":[53877478457672],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/retatrutide_60_mg_pen.jpg?v=1787328940","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["20mg","40mg","60mg"]}]},{"id":10174370185544,"title":"Glutathione","handle":"glutathione","body_html":"\u003cp\u003e\u003cstrong\u003eGlutathione — The Master Antioxidant\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports antioxidant defence\u003c\/li\u003e\n\u003cli\u003eSupports detoxification\u003c\/li\u003e\n\u003cli\u003eSupports skin brightness\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eGlutathione is a tripeptide of glutamate, cysteine and glycine, and the body's principal intracellular antioxidant — which is why it is commonly called the master antioxidant. It is supplied as a lyophilised powder in a sealed vial for laboratory and in-vitro research.\u003c\/p\u003e\n\u003cp\u003ePepSource supplies Glutathione in a 1500mg vial. Every batch is independently third-party tested for HPLC purity and mass-spectrometry identity, and the certificate of analysis for the batch you receive is published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Lyophilised powder, sealed vial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 1500mg vial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSequence \/ origin:\u003c\/strong\u003e Tripeptide of glutamate, cysteine and glycine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store sealed vials cool, dry and away from light; freeze for long-term storage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReconstitution:\u003c\/strong\u003e Bacteriostatic water — see our \u003ca href=\"\/pages\/reconstitution-guide\"\u003ereconstitution guide\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003eGlutathione sits at the centre of cellular redox biology. Published research has examined its scavenging of free radicals and role in oxidative stress; phase II detoxification, where it conjugates to toxins to make them water-soluble for excretion; maintenance of cellular redox balance; and skin pigmentation, where studies have examined its effect on melanin synthesis.\u003c\/p\u003e\n\u003cp\u003eResearch on glutathione includes both human studies and animal models.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003eEach batch is tested by an independent analytical laboratory for HPLC purity and mass-spectrometry identity before release. Certificates are published per batch and searchable by lot code on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e — you can verify the exact vial you were sent.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-07-27T11:02:05+01:00","created_at":"2026-07-27T09:36:45+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Research Peptide","tags":["powder"],"variants":[{"id":53599849578824,"title":"1500mg","option1":"1500mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"40.00","grams":25,"compare_at_price":null,"position":1,"product_id":10174370185544,"created_at":"2026-07-27T09:36:45+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83199656624456,"created_at":"2026-07-27T12:01:30+01:00","position":1,"updated_at":"2026-07-27T12:01:32+01:00","product_id":10174370185544,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/Glutathion1500MG.jpg?v=1785150092","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["1500mg"]}]},{"id":10144101302600,"title":"SS-31 Pen Refill Kit","handle":"ss-31-pen-refill","body_html":"\u003cp\u003e\u003cstrong\u003eSS-31 — The Mitochondrial Protector\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports mitochondrial function\u003c\/li\u003e\n\u003cli\u003eTargets cardiolipin\u003c\/li\u003e\n\u003cli\u003eSupports cellular energy\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThis product is supplied as a kit, not as a pre-filled cartridge.\u003c\/strong\u003e Everything needed to prepare a pen cartridge is included — the powder is shipped sealed and lyophilised, and is reconstituted by you at the point of use rather than by us before dispatch.\u003c\/p\u003e\n\u003cp\u003eA reconstituted cartridge is a liquid preparation with a limited stable life, and transit conditions cannot be controlled. Supplying the compound dry removes that variable entirely: the material arrives in the state it was tested in, and the clock only starts when you mix it. Available in 10mg.\u003c\/p\u003e\n\n\u003ch2\u003eWhat's in the kit\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 × SS-31 vial\u003c\/strong\u003e — lyophilised powder, 10mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 × bacteriostatic water, 3ml\u003c\/strong\u003e — for reconstitution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 × pen cartridge\u003c\/strong\u003e — empty, ready to fill\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1 × insulin needle\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe cartridge fits our peptide pens. Our \u003ca href=\"\/pages\/peptide-calculator\"\u003ereconstitution calculator\u003c\/a\u003e will work out the concentration and draw volume for the water volume you use.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Unmixed kit — powder vial, diluent, cartridge and needle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 10mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSource compound:\u003c\/strong\u003e SS-31 (elamipretide) — \u003ca href=\"\/products\/ss-31\"\u003ealso available as a lyophilised powder vial\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e Supplied dry; reconstituted by you at the point of use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store the sealed vial cool, dry and away from light. Refrigerate once reconstituted\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDispatch:\u003c\/strong\u003e Within 48 hours — each kit is assembled to order\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003eSS-31, also known as elamipretide, is a mitochondria-targeting tetrapeptide that binds cardiolipin, a phospholipid unique to the inner mitochondrial membrane. Published work has examined its influence on cristae structure and electron transport chain efficiency, cardiac and renal ischaemia-reperfusion injury, and it has been carried into human trials by Stealth BioTherapeutics for Barth syndrome and primary mitochondrial myopathy.\u003c\/p\u003e\n\u003cp\u003eSS-31 has been studied in human clinical trials. Our summary of the published literature is here: \u003ca href=\"https:\/\/pepsource.co.uk\/blogs\/research\/dosage-cycle-information-ss-31-mots-c-and-nad-what-published-research-actually-shows\"\u003eSS-31, MOTS-c \u0026amp; NAD+ Dosage: What Studies Show\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003eKits contain the same independently tested powder as our standalone vials — HPLC purity and mass-spectrometry identity, certified per batch and published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eReturns\u003c\/h2\u003e\n\u003cp\u003eKits are assembled to order. An unopened kit with all seals intact can be returned within 14 days — but once the vial, water or needle seal has been broken it cannot be accepted back on hygiene grounds, and anything already reconstituted cannot be returned. Faulty, damaged or incorrect items are always put right. See our \u003ca href=\"\/policies\/refund-policy\"\u003erefund policy\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-07-23T21:21:39+01:00","created_at":"2026-07-13T20:21:50+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Pen Refill","tags":["kits"],"variants":[{"id":53516004131144,"title":"10mg","option1":"10mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"34.00","grams":20,"compare_at_price":null,"position":1,"product_id":10144101302600,"created_at":"2026-07-13T20:21:50+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83106224734536,"created_at":"2026-07-19T17:37:53+01:00","position":1,"updated_at":"2026-07-19T17:37:56+01:00","product_id":10144101302600,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/5a64486d9586ac1716bed874e1b01020d6bc23ce6ec829e6a3daa118a8908402_065fe10d-6139-4f13-b126-f895e74a3957.jpg?v=1784479076","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["10mg"]}]},{"id":10140848849224,"title":"SS-31","handle":"ss-31","body_html":"\u003cp\u003e\u003cstrong\u003eSS-31 — The Mitochondrial Protector\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports mitochondrial function\u003c\/li\u003e\n\u003cli\u003eTargets cardiolipin\u003c\/li\u003e\n\u003cli\u003eSupports cellular energy\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eSS-31, also known as elamipretide, is a mitochondria-targeting tetrapeptide. Unlike most research peptides it concentrates in a specific place — it binds cardiolipin, a phospholipid unique to the inner mitochondrial membrane. It is supplied as a lyophilised powder in a sealed vial for laboratory and in-vitro research.\u003c\/p\u003e\n\u003cp\u003ePepSource supplies SS-31 in a 10mg vial. Every batch is independently third-party tested for HPLC purity and mass-spectrometry identity, and the certificate of analysis for the batch you receive is published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Lyophilised powder, sealed vial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 10mg vial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSequence \/ origin:\u003c\/strong\u003e Mitochondria-targeting tetrapeptide (elamipretide), binds cardiolipin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store sealed vials cool, dry and away from light; freeze for long-term storage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReconstitution:\u003c\/strong\u003e Bacteriostatic water — see our \u003ca href=\"\/pages\/reconstitution-guide\"\u003ereconstitution guide\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003eSS-31 is studied for its effect on mitochondrial bioenergetics. By binding cardiolipin it has been examined for its influence on cristae structure and the efficiency of the electron transport chain. Published work covers cardiac and renal ischaemia-reperfusion injury, and it has been carried into human trials by Stealth BioTherapeutics for Barth syndrome and primary mitochondrial myopathy.\u003c\/p\u003e\n\u003cp\u003eSS-31 has been studied in human clinical trials, which places it among the better-evidenced compounds in this catalogue. Our summary of the published literature is here: \u003ca href=\"https:\/\/pepsource.co.uk\/blogs\/research\/dosage-cycle-information-ss-31-mots-c-and-nad-what-published-research-actually-shows\"\u003eSS-31, MOTS-c \u0026amp; NAD+ Dosage: What Studies Show\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003eEach batch is tested by an independent analytical laboratory for HPLC purity and mass-spectrometry identity before release. Certificates are published per batch and searchable by lot code on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e — you can verify the exact vial you were sent.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-07-21T17:57:15+01:00","created_at":"2026-07-11T18:37:04+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Research Peptide","tags":["powder"],"variants":[{"id":53508403822920,"title":"10mg","option1":"10mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":{"id":83106430484808,"product_id":10140848849224,"position":1,"created_at":"2026-07-19T18:35:06+01:00","updated_at":"2026-07-19T18:35:09+01:00","alt":"PepSource SS-31 10mg vial of lyophilised research peptide powder","width":1254,"height":1254,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/SS-31_10_MG.jpg?v=1784482509","variant_ids":[53508403822920]},"available":true,"price":"25.00","grams":15,"compare_at_price":null,"position":1,"product_id":10140848849224,"created_at":"2026-07-11T18:37:04+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83106430484808,"created_at":"2026-07-19T18:35:06+01:00","position":1,"updated_at":"2026-07-19T18:35:09+01:00","product_id":10140848849224,"variant_ids":[53508403822920],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/SS-31_10_MG.jpg?v=1784482509","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["10mg"]}]},{"id":10140657582408,"title":"NAD+","handle":"nad","body_html":"\u003cp\u003e\u003cstrong\u003eNAD+ — The Coenzyme\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports cellular energy production\u003c\/li\u003e\n\u003cli\u003ePromotes healthy ageing\u003c\/li\u003e\n\u003cli\u003eSupports DNA repair\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eNAD+ (nicotinamide adenine dinucleotide) is a coenzyme present in every living cell, central to the reactions that convert nutrients into cellular energy. It is not a peptide, but it sits alongside them in research on metabolism and ageing. It is supplied as a lyophilised powder in a sealed vial for laboratory and in-vitro research.\u003c\/p\u003e\n\u003cp\u003ePepSource supplies NAD+ in 500mg and 1000mg vials. Every batch is independently third-party tested for HPLC purity and mass-spectrometry identity, and the certificate of analysis for the batch you receive is published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Lyophilised powder, sealed vial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 500mg and 1000mg vials\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSequence \/ origin:\u003c\/strong\u003e Nicotinamide adenine dinucleotide — a coenzyme, not a peptide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store sealed vials cool, dry and away from light; freeze for long-term storage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReconstitution:\u003c\/strong\u003e Bacteriostatic water — see our \u003ca href=\"\/pages\/reconstitution-guide\"\u003ereconstitution guide\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003eNAD+ is one of the most studied molecules in ageing biology. Published research has examined its role in cellular energy metabolism and redox reactions; activation of the sirtuins, a family of enzymes involved in cellular repair and stress response; PARP-mediated DNA repair, which consumes NAD+ directly; and the well-documented decline of NAD+ levels with age, which is the observation most of the field is built around.\u003c\/p\u003e\n\u003cp\u003eResearch on NAD+ includes both human studies and animal models. Our summary of the published literature is here: \u003ca href=\"https:\/\/pepsource.co.uk\/blogs\/research\/dosage-cycle-information-ss-31-mots-c-and-nad-what-published-research-actually-shows\"\u003eSS-31, MOTS-c \u0026amp; NAD+ Dosage: What Studies Show\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003eEach batch is tested by an independent analytical laboratory for HPLC purity and mass-spectrometry identity before release. Certificates are published per batch and searchable by lot code on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e — you can verify the exact vial you were sent.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-07-21T12:39:04+01:00","created_at":"2026-07-11T14:56:23+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Research Peptide","tags":["powder"],"variants":[{"id":53507197239624,"title":"500mg","option1":"500mg","option2":null,"option3":null,"sku":"NJ500","requires_shipping":true,"taxable":true,"featured_image":{"id":83106428846408,"product_id":10140657582408,"position":1,"created_at":"2026-07-19T18:34:37+01:00","updated_at":"2026-07-19T18:34:40+01:00","alt":"PepSource NAD+ 500mg vial of lyophilised research compound powder","width":1254,"height":1254,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/NAD_500_mg.jpg?v=1784482480","variant_ids":[53507197239624]},"available":true,"price":"40.00","grams":20,"compare_at_price":null,"position":1,"product_id":10140657582408,"created_at":"2026-07-11T14:56:23+01:00","updated_at":"2026-09-24T08:53:48+01:00"},{"id":53508582965576,"title":"1000mg","option1":"1000mg","option2":null,"option3":null,"sku":"NJ1000","requires_shipping":true,"taxable":true,"featured_image":{"id":83106428879176,"product_id":10140657582408,"position":2,"created_at":"2026-07-19T18:34:37+01:00","updated_at":"2026-07-19T18:34:40+01:00","alt":"PepSource NAD+ 1000mg vial of lyophilised research compound powder","width":1254,"height":1254,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/NAD_1000MG.jpg?v=1784482480","variant_ids":[53508582965576]},"available":true,"price":"65.00","grams":25,"compare_at_price":null,"position":2,"product_id":10140657582408,"created_at":"2026-07-11T19:10:14+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83106428846408,"created_at":"2026-07-19T18:34:37+01:00","position":1,"updated_at":"2026-07-19T18:34:40+01:00","product_id":10140657582408,"variant_ids":[53507197239624],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/NAD_500_mg.jpg?v=1784482480","width":1254,"height":1254},{"id":83106428879176,"created_at":"2026-07-19T18:34:37+01:00","position":2,"updated_at":"2026-07-19T18:34:40+01:00","product_id":10140657582408,"variant_ids":[53508582965576],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/NAD_1000MG.jpg?v=1784482480","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["500mg","1000mg"]}]},{"id":10144101073224,"title":"MOTS-C Pen Refill Kit","handle":"mots-c-pen-refill","body_html":"\u003cp\u003e\u003cstrong\u003eMOTS-c — The Mitochondrial Peptide\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports metabolic function\u003c\/li\u003e\n\u003cli\u003eActivates AMPK\u003c\/li\u003e\n\u003cli\u003eSupports exercise capacity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThis product is supplied as a kit, not as a pre-filled cartridge.\u003c\/strong\u003e Everything needed to prepare a pen cartridge is included — the powder is shipped sealed and lyophilised, and is reconstituted by you at the point of use rather than by us before dispatch.\u003c\/p\u003e\n\u003cp\u003eA reconstituted cartridge is a liquid preparation with a limited stable life, and transit conditions cannot be controlled. Supplying the compound dry removes that variable entirely: the material arrives in the state it was tested in, and the clock only starts when you mix it. Available in 10mg and 40mg.\u003c\/p\u003e\n\n\u003ch2\u003eWhat's in the kit\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 × MOTS-c vial\u003c\/strong\u003e — lyophilised powder, 10mg or 40mg as selected\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 × bacteriostatic water, 3ml\u003c\/strong\u003e — for reconstitution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 × pen cartridge\u003c\/strong\u003e — empty, ready to fill\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1 × insulin needle\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe cartridge fits our peptide pens. Our \u003ca href=\"\/pages\/peptide-calculator\"\u003ereconstitution calculator\u003c\/a\u003e will work out the concentration and draw volume for the water volume you use.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Unmixed kit — powder vial, diluent, cartridge and needle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 10mg and 40mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSource compound:\u003c\/strong\u003e MOTS-c — \u003ca href=\"\/products\/mots-c\"\u003ealso available as a lyophilised powder vial\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e Supplied dry; reconstituted by you at the point of use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store the sealed vial cool, dry and away from light. Refrigerate once reconstituted\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDispatch:\u003c\/strong\u003e Within 48 hours — each kit is assembled to order\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003eMOTS-c is a 16-amino-acid mitochondrial-derived peptide, encoded within the mitochondrial 12S rRNA gene rather than in nuclear DNA. It is studied primarily as a metabolic regulator: published research has examined its activation of AMPK, the cellular energy sensor; insulin sensitivity and glucose metabolism; exercise capacity; and mitochondrial function during ageing.\u003c\/p\u003e\n\u003cp\u003eResearch on MOTS-c is predominantly in animal models and in-vitro studies; human clinical data is limited. Our summary of the published literature is here: \u003ca href=\"https:\/\/pepsource.co.uk\/blogs\/research\/dosage-cycle-information-ss-31-mots-c-and-nad-what-published-research-actually-shows\"\u003eSS-31, MOTS-c \u0026amp; NAD+ Dosage: What Studies Show\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003eKits contain the same independently tested powder as our standalone vials — HPLC purity and mass-spectrometry identity, certified per batch and published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eReturns\u003c\/h2\u003e\n\u003cp\u003eKits are assembled to order. An unopened kit with all seals intact can be returned within 14 days — but once the vial, water or needle seal has been broken it cannot be accepted back on hygiene grounds, and anything already reconstituted cannot be returned. Faulty, damaged or incorrect items are always put right. See our \u003ca href=\"\/policies\/refund-policy\"\u003erefund policy\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-07-21T12:38:48+01:00","created_at":"2026-07-13T20:21:16+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Pen Refill","tags":["kits"],"variants":[{"id":53516003574088,"title":"10mg","option1":"10mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"34.00","grams":20,"compare_at_price":null,"position":1,"product_id":10144101073224,"created_at":"2026-07-13T20:21:16+01:00","updated_at":"2026-09-24T08:53:48+01:00"},{"id":53516003606856,"title":"40mg","option1":"40mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"84.00","grams":20,"compare_at_price":null,"position":2,"product_id":10144101073224,"created_at":"2026-07-13T20:21:16+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83105651851592,"created_at":"2026-07-19T15:15:26+01:00","position":1,"updated_at":"2026-07-19T15:15:30+01:00","product_id":10144101073224,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/5a64486d9586ac1716bed874e1b01020d6bc23ce6ec829e6a3daa118a8908402_1494d51c-33eb-42c4-812d-8b46e0c115f7.jpg?v=1784470530","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["10mg","40mg"]}]},{"id":10140658041160,"title":"Selank","handle":"selank","body_html":"\u003cp\u003e\u003cstrong\u003eSelank — The Calm Peptide\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports calm without sedation\u003c\/li\u003e\n\u003cli\u003eInfluences GABA signalling\u003c\/li\u003e\n\u003cli\u003eSupports focus under stress\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eSelank is a synthetic heptapeptide analogue of tuftsin, an immunomodulatory peptide occurring naturally in the body. Developed in Russia and also known as TP-7, it is supplied as a lyophilised powder in a sealed vial for laboratory and in-vitro research.\u003c\/p\u003e\n\u003cp\u003ePepSource supplies Selank in 10mg vials. Every batch is independently third-party tested for HPLC purity and mass-spectrometry identity, and the certificate of analysis for the batch you receive is published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Lyophilised powder, sealed vial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 10mg vials\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSequence \/ origin:\u003c\/strong\u003e Synthetic heptapeptide analogue of tuftsin (TP-7)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store sealed vials cool, dry and away from light; freeze for long-term storage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReconstitution:\u003c\/strong\u003e Bacteriostatic water — see our \u003ca href=\"\/pages\/reconstitution-guide\"\u003ereconstitution guide\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003eSelank is studied chiefly as an anxiolytic. What distinguishes it in the literature is that research reports anxiolytic activity without the sedation, cognitive dulling or dependence associated with benzodiazepines. Published work has examined its influence on GABAergic signalling, expression of BDNF, and inhibition of enkephalin degradation — which extends the action of the body's own regulatory peptides rather than substituting for them. Studies have also looked at attention and memory under stress conditions.\u003c\/p\u003e\n\u003cp\u003eResearch on Selank includes both human clinical studies, largely published in Russian-language journals, and animal models.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003eEach batch is tested by an independent analytical laboratory for HPLC purity and mass-spectrometry identity before release. Certificates are published per batch and searchable by lot code on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e — you can verify the exact vial you were sent.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-07-19T18:51:23+01:00","created_at":"2026-07-11T14:57:32+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Research Peptide","tags":["powder"],"variants":[{"id":53507197698376,"title":"10mg","option1":"10mg","option2":null,"option3":null,"sku":"SK10","requires_shipping":true,"taxable":true,"featured_image":{"id":83106428944712,"product_id":10140658041160,"position":1,"created_at":"2026-07-19T18:34:37+01:00","updated_at":"2026-07-19T18:34:40+01:00","alt":"PepSource Selank 10mg vial of lyophilised research peptide powder","width":1254,"height":1254,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/SELANK_10_MG.jpg?v=1784482480","variant_ids":[53507197698376]},"available":true,"price":"35.00","grams":15,"compare_at_price":null,"position":1,"product_id":10140658041160,"created_at":"2026-07-11T14:57:32+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83106428944712,"created_at":"2026-07-19T18:34:37+01:00","position":1,"updated_at":"2026-07-19T18:34:40+01:00","product_id":10140658041160,"variant_ids":[53507197698376],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/SELANK_10_MG.jpg?v=1784482480","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["10mg"]}]},{"id":10140656271688,"title":"Wolverine Stack","handle":"bpc-157-tb-500-blend","body_html":"\u003cp\u003e\u003cstrong\u003eWolverine Stack — The Recovery Stack\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCombines BPC-157 and TB-500\u003c\/li\u003e\n\u003cli\u003eSupports tissue repair\u003c\/li\u003e\n\u003cli\u003eTwo repair mechanisms in one vial\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe Wolverine Stack is PepSource's equal blend of BPC-157 and TB-500, lyophilised together in a single sealed vial for laboratory and in-vitro research.\u003c\/p\u003e\n\u003cp\u003ePepSource supplies the Wolverine Stack in 10mg and 20mg vials. Every batch is independently third-party tested for HPLC purity and mass-spectrometry identity, and the certificate of analysis for the batch you receive is published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eBlend composition\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e10mg vial — BPC-157 5mg + TB-500 5mg\u003c\/li\u003e\n\u003cli\u003e20mg vial — BPC-157 10mg + TB-500 10mg\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAn equal split of both peptides, lyophilised together in a single vial.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Lyophilised powder, sealed vial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 10mg and 20mg vials\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComposition:\u003c\/strong\u003e Equal parts BPC-157 and TB-500\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store sealed vials cool, dry and away from light; freeze for long-term storage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReconstitution:\u003c\/strong\u003e Bacteriostatic water — see our \u003ca href=\"\/pages\/reconstitution-guide\"\u003ereconstitution guide\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003eThe Wolverine Stack pairs two peptides that have been studied in tissue repair by different mechanisms. BPC-157, a synthetic pentadecapeptide based on a sequence found in human gastric juice, has been examined for tendon, ligament and muscle repair, gut mucosal integrity and angiogenesis. TB-500, a synthetic fragment of the naturally occurring protein Thymosin Beta-4, has been studied for actin regulation, migration of repair cells to injury sites, new blood-vessel formation and cardiac tissue repair. Combining them is how the two mechanisms are most often examined together.\u003c\/p\u003e\n\u003cp\u003eResearch on both compounds is predominantly in animal models and in-vitro studies; human clinical data is limited. Our summary of the published literature is here: \u003ca href=\"https:\/\/pepsource.co.uk\/blogs\/research\/tb-500-dosage-research\"\u003eTB-500 Dosage: What Studies Have Actually Investigated\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003eEach batch is tested by an independent analytical laboratory for HPLC purity and mass-spectrometry identity before release. Certificates are published per batch and searchable by lot code on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e — you can verify the exact vial you were sent.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-07-19T18:50:51+01:00","created_at":"2026-07-11T14:54:03+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Research Peptide","tags":["powder"],"variants":[{"id":53508583719240,"title":"10mg","option1":"10mg","option2":null,"option3":null,"sku":"BB10","requires_shipping":true,"taxable":true,"featured_image":{"id":83106430648648,"product_id":10140656271688,"position":1,"created_at":"2026-07-19T18:35:07+01:00","updated_at":"2026-07-19T18:35:10+01:00","alt":"PepSource Wolverine Stack 10mg vial, BPC-157 and TB-500 research peptide blend","width":1254,"height":1254,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/WOLVERINE_10_MG.jpg?v=1784482510","variant_ids":[53508583719240]},"available":true,"price":"40.00","grams":15,"compare_at_price":null,"position":1,"product_id":10140656271688,"created_at":"2026-07-11T19:10:15+01:00","updated_at":"2026-09-24T08:53:48+01:00"},{"id":53507195371848,"title":"20mg","option1":"20mg","option2":null,"option3":null,"sku":"BB20","requires_shipping":true,"taxable":true,"featured_image":{"id":83106431566152,"product_id":10140656271688,"position":2,"created_at":"2026-07-19T18:35:37+01:00","updated_at":"2026-07-19T18:35:40+01:00","alt":"PepSource Wolverine Stack 20mg vial, BPC-157 and TB-500 research peptide blend","width":1254,"height":1254,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/WOLVERINE_20_MG.jpg?v=1784482540","variant_ids":[53507195371848]},"available":true,"price":"60.00","grams":15,"compare_at_price":null,"position":2,"product_id":10140656271688,"created_at":"2026-07-11T14:54:03+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83106430648648,"created_at":"2026-07-19T18:35:07+01:00","position":1,"updated_at":"2026-07-19T18:35:10+01:00","product_id":10140656271688,"variant_ids":[53508583719240],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/WOLVERINE_10_MG.jpg?v=1784482510","width":1254,"height":1254},{"id":83106431566152,"created_at":"2026-07-19T18:35:37+01:00","position":2,"updated_at":"2026-07-19T18:35:40+01:00","product_id":10140656271688,"variant_ids":[53507195371848],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/WOLVERINE_20_MG.jpg?v=1784482540","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["10mg","20mg"]}]},{"id":10144100909384,"title":"Wolverine Stack Pen Refill Kit","handle":"bpc-157-tb-500-blend-pen-refill","body_html":"\u003cp\u003e\u003cstrong\u003eWolverine Stack — The Recovery Stack\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCombines BPC-157 and TB-500\u003c\/li\u003e\n\u003cli\u003eSupports tissue repair\u003c\/li\u003e\n\u003cli\u003eTwo repair mechanisms in one cartridge\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThis product is supplied as a kit, not as a pre-filled cartridge.\u003c\/strong\u003e Everything needed to prepare a pen cartridge is included — the powder is shipped sealed and lyophilised, and is reconstituted by you at the point of use rather than by us before dispatch.\u003c\/p\u003e\n\u003cp\u003eA reconstituted cartridge is a liquid preparation with a limited stable life, and transit conditions cannot be controlled. Supplying the compound dry removes that variable entirely: the material arrives in the state it was tested in, and the clock only starts when you mix it. Available in 10mg and 20mg.\u003c\/p\u003e\n\n\u003ch2\u003eWhat's in the kit\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 × Wolverine Stack vial\u003c\/strong\u003e — lyophilised BPC-157 and TB-500 powder, 10mg or 20mg as selected\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 × bacteriostatic water, 3ml\u003c\/strong\u003e — for reconstitution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 × pen cartridge\u003c\/strong\u003e — empty, ready to fill\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1 × insulin needle\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe cartridge fits our peptide pens. Our \u003ca href=\"\/pages\/peptide-calculator\"\u003ereconstitution calculator\u003c\/a\u003e will work out the concentration and draw volume for the water volume you use.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Unmixed kit — powder vial, diluent, cartridge and needle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 10mg and 20mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSource compound:\u003c\/strong\u003e Wolverine Stack — \u003ca href=\"\/products\/bpc-157-tb-500-blend\"\u003ealso available as a lyophilised powder vial\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e Supplied dry; reconstituted by you at the point of use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store the sealed vial cool, dry and away from light. Refrigerate once reconstituted\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDispatch:\u003c\/strong\u003e Within 48 hours — each kit is assembled to order\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003eThe Wolverine Stack pairs two peptides studied in tissue repair by different mechanisms. BPC-157 has been examined for tendon, ligament and muscle repair, gut mucosal integrity and angiogenesis. TB-500, a synthetic fragment of the naturally occurring protein Thymosin Beta-4, has been studied for actin regulation, migration of repair cells to injury sites, new blood-vessel formation and cardiac tissue repair.\u003c\/p\u003e\n\u003cp\u003eResearch on both compounds is predominantly in animal models and in-vitro studies; human clinical data is limited. Our summary of the published literature is here: \u003ca href=\"https:\/\/pepsource.co.uk\/blogs\/research\/tb-500-dosage-research\"\u003eTB-500 Dosage: What Studies Have Actually Investigated\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003eKits contain the same independently tested powder as our standalone vials — HPLC purity and mass-spectrometry identity, certified per batch and published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eReturns\u003c\/h2\u003e\n\u003cp\u003eKits are assembled to order. An unopened kit with all seals intact can be returned within 14 days — but once the vial, water or needle seal has been broken it cannot be accepted back on hygiene grounds, and anything already reconstituted cannot be returned. Faulty, damaged or incorrect items are always put right. See our \u003ca href=\"\/policies\/refund-policy\"\u003erefund policy\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-07-19T18:50:00+01:00","created_at":"2026-07-13T20:21:14+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Pen Refill","tags":["kits"],"variants":[{"id":53516003377480,"title":"10mg","option1":"10mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"49.00","grams":20,"compare_at_price":null,"position":1,"product_id":10144100909384,"created_at":"2026-07-13T20:21:14+01:00","updated_at":"2026-09-24T08:53:48+01:00"},{"id":53516003344712,"title":"20mg","option1":"20mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"69.00","grams":20,"compare_at_price":null,"position":2,"product_id":10144100909384,"created_at":"2026-07-13T20:21:14+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83106522235208,"created_at":"2026-07-19T18:49:50+01:00","position":1,"updated_at":"2026-07-19T18:49:53+01:00","product_id":10144100909384,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/5a64486d9586ac1716bed874e1b01020d6bc23ce6ec829e6a3daa118a8908402_4e1da426-85cc-4726-92e4-7fd00791ddac.jpg?v=1784483393","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["10mg","20mg"]}]},{"id":10140655944008,"title":"Acetic Acid 0.6%","handle":"acetic-acid-0-6","body_html":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eAcetic Acid 0.6% is a dilute laboratory solvent supplied in a sealed 3ml vial. It is used to reconstitute research peptides that are poorly soluble in bacteriostatic water — the mild acidity helps bring them into solution.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Sterile solution, sealed vial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 3ml vial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComposition:\u003c\/strong\u003e 0.6% acetic acid in water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUsed for:\u003c\/strong\u003e Reconstituting peptides with low solubility in bacteriostatic water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store at room temperature, away from direct light\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eChoosing a reconstitution solvent\u003c\/h2\u003e\n\u003cp\u003eMost research peptides dissolve readily in bacteriostatic water; a minority need a dilute acid instead. Our guide covers which is appropriate and why: \u003ca href=\"\/blogs\/research\/reconstitution-solvents-bacteriostatic-water-vs-acetic-acid\"\u003eBacteriostatic Water vs Acetic Acid for Peptides\u003c\/a\u003e. For technique, see our \u003ca href=\"\/pages\/reconstitution-guide\"\u003ereconstitution guide\u003c\/a\u003e. \u003ca href=\"\/products\/bacteriostatic-water-10ml\"\u003eBacteriostatic water\u003c\/a\u003e is also available.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e Not intended for human or veterinary consumption.\u003c\/p\u003e","published_at":"2026-07-19T18:49:34+01:00","created_at":"2026-07-11T14:52:51+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Mixing Solution","tags":["lab-supply"],"variants":[{"id":53507191767368,"title":"3ml","option1":"3ml","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":{"id":83106431697224,"product_id":10140655944008,"position":1,"created_at":"2026-07-19T18:35:37+01:00","updated_at":"2026-07-19T18:35:40+01:00","alt":"PepSource acetic acid 0.6% 3ml vial for reconstituting research peptides","width":1254,"height":1254,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/Acetic_Acid_0.6_3ML.jpg?v=1784482540","variant_ids":[53507191767368]},"available":true,"price":"3.95","grams":15,"compare_at_price":null,"position":1,"product_id":10140655944008,"created_at":"2026-07-11T14:52:51+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83106431697224,"created_at":"2026-07-19T18:35:37+01:00","position":1,"updated_at":"2026-07-19T18:35:40+01:00","product_id":10140655944008,"variant_ids":[53507191767368],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/Acetic_Acid_0.6_3ML.jpg?v=1784482540","width":1254,"height":1254}],"options":[{"name":"Volume","position":1,"values":["3ml"]}]},{"id":10140657549640,"title":"MOTS-C","handle":"mots-c","body_html":"\u003cp\u003e\u003cstrong\u003eMOTS-c — The Mitochondrial Peptide\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports metabolic function\u003c\/li\u003e\n\u003cli\u003eActivates AMPK\u003c\/li\u003e\n\u003cli\u003eSupports exercise capacity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eMOTS-c is a 16-amino-acid mitochondrial-derived peptide, encoded not in nuclear DNA but within the mitochondrial 12S rRNA gene — one of a small group of peptides the mitochondria themselves produce. It is supplied as a lyophilised powder in a sealed vial for laboratory and in-vitro research.\u003c\/p\u003e\n\u003cp\u003ePepSource supplies MOTS-c in 10mg and 40mg vials. Every batch is independently third-party tested for HPLC purity and mass-spectrometry identity, and the certificate of analysis for the batch you receive is published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Lyophilised powder, sealed vial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 10mg and 40mg vials\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSequence \/ origin:\u003c\/strong\u003e 16-amino-acid mitochondrial-derived peptide, encoded in the mitochondrial 12S rRNA gene\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store sealed vials cool, dry and away from light; freeze for long-term storage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReconstitution:\u003c\/strong\u003e Bacteriostatic water — see our \u003ca href=\"\/pages\/reconstitution-guide\"\u003ereconstitution guide\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003eMOTS-c is studied primarily as a metabolic regulator. Published research has examined its activation of AMPK, the cellular energy sensor; insulin sensitivity and glucose metabolism; exercise capacity, where studies in aged mice reported improved physical performance; and mitochondrial function and metabolic homeostasis during ageing. It is one of the peptides that connects mitochondrial biology to whole-body metabolism, which is why it appears so often in longevity research.\u003c\/p\u003e\n\u003cp\u003eResearch on MOTS-c is predominantly in animal models and in-vitro studies; human clinical data is limited. Our summary of the published literature is here: \u003ca href=\"https:\/\/pepsource.co.uk\/blogs\/research\/dosage-cycle-information-ss-31-mots-c-and-nad-what-published-research-actually-shows\"\u003eSS-31, MOTS-c \u0026amp; NAD+ Dosage: What Studies Show\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003eEach batch is tested by an independent analytical laboratory for HPLC purity and mass-spectrometry identity before release. Certificates are published per batch and searchable by lot code on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e — you can verify the exact vial you were sent.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-07-19T15:14:47+01:00","created_at":"2026-07-11T14:56:18+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Research Peptide","tags":["powder"],"variants":[{"id":53507197206856,"title":"10mg","option1":"10mg","option2":null,"option3":null,"sku":"MS10","requires_shipping":true,"taxable":true,"featured_image":{"id":83106428780872,"product_id":10140657549640,"position":1,"created_at":"2026-07-19T18:34:37+01:00","updated_at":"2026-07-19T18:34:40+01:00","alt":"PepSource MOTS-c 10mg vial of lyophilised research peptide powder","width":1254,"height":1254,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/MOTS-C_10_MG.jpg?v=1784482480","variant_ids":[53507197206856]},"available":true,"price":"25.00","grams":15,"compare_at_price":null,"position":1,"product_id":10140657549640,"created_at":"2026-07-11T14:56:18+01:00","updated_at":"2026-09-24T08:53:48+01:00"},{"id":53508578869576,"title":"40mg","option1":"40mg","option2":null,"option3":null,"sku":"MS40","requires_shipping":true,"taxable":true,"featured_image":{"id":83106428813640,"product_id":10140657549640,"position":2,"created_at":"2026-07-19T18:34:37+01:00","updated_at":"2026-07-19T18:34:40+01:00","alt":"PepSource MOTS-c 40mg vial of lyophilised research peptide powder","width":1254,"height":1254,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/MOTS-C_40_MG.jpg?v=1784482480","variant_ids":[53508578869576]},"available":true,"price":"75.00","grams":20,"compare_at_price":null,"position":2,"product_id":10140657549640,"created_at":"2026-07-11T19:09:58+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83106428780872,"created_at":"2026-07-19T18:34:37+01:00","position":1,"updated_at":"2026-07-19T18:34:40+01:00","product_id":10140657549640,"variant_ids":[53507197206856],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/MOTS-C_10_MG.jpg?v=1784482480","width":1254,"height":1254},{"id":83106428813640,"created_at":"2026-07-19T18:34:37+01:00","position":2,"updated_at":"2026-07-19T18:34:40+01:00","product_id":10140657549640,"variant_ids":[53508578869576],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/MOTS-C_40_MG.jpg?v=1784482480","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["10mg","40mg"]}]},{"id":10144101237064,"title":"Selank Pen Refill Kit","handle":"selank-pen-refill","body_html":"\u003cp\u003e\u003cstrong\u003eSelank — The Calm Peptide\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports calm without sedation\u003c\/li\u003e\n\u003cli\u003eInfluences GABA signalling\u003c\/li\u003e\n\u003cli\u003eSupports focus under stress\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThis product is supplied as a kit, not as a pre-filled cartridge.\u003c\/strong\u003e Everything needed to prepare a pen cartridge is included — the powder is shipped sealed and lyophilised, and is reconstituted by you at the point of use rather than by us before dispatch.\u003c\/p\u003e\n\u003cp\u003eA reconstituted cartridge is a liquid preparation with a limited stable life, and transit conditions cannot be controlled. Supplying the compound dry removes that variable entirely: the material arrives in the state it was tested in, and the clock only starts when you mix it. Available in 10mg.\u003c\/p\u003e\n\n\u003ch2\u003eWhat's in the kit\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 × Selank vial\u003c\/strong\u003e — lyophilised powder, 10mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 × bacteriostatic water, 3ml\u003c\/strong\u003e — for reconstitution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 × pen cartridge\u003c\/strong\u003e — empty, ready to fill\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1 × insulin needle\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe cartridge fits our peptide pens. Our \u003ca href=\"\/pages\/peptide-calculator\"\u003ereconstitution calculator\u003c\/a\u003e will work out the concentration and draw volume for the water volume you use.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Unmixed kit — powder vial, diluent, cartridge and needle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 10mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSource compound:\u003c\/strong\u003e Selank — \u003ca href=\"\/products\/selank\"\u003ealso available as a lyophilised powder vial\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e Supplied dry; reconstituted by you at the point of use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store the sealed vial cool, dry and away from light. Refrigerate once reconstituted\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDispatch:\u003c\/strong\u003e Within 48 hours — each kit is assembled to order\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003eSelank is a synthetic heptapeptide analogue of tuftsin, developed in Russia and also known as TP-7. It is studied chiefly as an anxiolytic, and what distinguishes it in the literature is that research reports anxiolytic activity without the sedation, cognitive dulling or dependence associated with benzodiazepines. Published work has examined its influence on GABAergic signalling, expression of BDNF, inhibition of enkephalin degradation, and attention and memory under stress conditions.\u003c\/p\u003e\n\u003cp\u003eResearch on Selank includes both human clinical studies, largely published in Russian-language journals, and animal models.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003eKits contain the same independently tested powder as our standalone vials — HPLC purity and mass-spectrometry identity, certified per batch and published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eReturns\u003c\/h2\u003e\n\u003cp\u003eKits are assembled to order. An unopened kit with all seals intact can be returned within 14 days — but once the vial, water or needle seal has been broken it cannot be accepted back on hygiene grounds, and anything already reconstituted cannot be returned. Faulty, damaged or incorrect items are always put right. See our \u003ca href=\"\/policies\/refund-policy\"\u003erefund policy\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-07-19T01:19:39+01:00","created_at":"2026-07-13T20:21:49+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Pen Refill","tags":["kits"],"variants":[{"id":53516004000072,"title":"10mg","option1":"10mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"44.00","grams":20,"compare_at_price":null,"position":1,"product_id":10144101237064,"created_at":"2026-07-13T20:21:49+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83099117650248,"created_at":"2026-07-18T17:41:36+01:00","position":1,"updated_at":"2026-07-18T17:41:41+01:00","product_id":10144101237064,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/5a64486d9586ac1716bed874e1b01020d6bc23ce6ec829e6a3daa118a8908402_0ca46863-0cb0-4d37-b32f-26de49144d88.jpg?v=1784392901","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["10mg"]}]},{"id":10144101269832,"title":"Semax Pen Refill Kit","handle":"semax-pen-refill","body_html":"\u003cp\u003e\u003cstrong\u003eSemax — The Focus Peptide\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports cognitive function\u003c\/li\u003e\n\u003cli\u003eInfluences BDNF and NGF\u003c\/li\u003e\n\u003cli\u003eNeuroprotective in research models\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThis product is supplied as a kit, not as a pre-filled cartridge.\u003c\/strong\u003e Everything needed to prepare a pen cartridge is included — the powder is shipped sealed and lyophilised, and is reconstituted by you at the point of use rather than by us before dispatch.\u003c\/p\u003e\n\u003cp\u003eA reconstituted cartridge is a liquid preparation with a limited stable life, and transit conditions cannot be controlled. Supplying the compound dry removes that variable entirely: the material arrives in the state it was tested in, and the clock only starts when you mix it. Available in 10mg.\u003c\/p\u003e\n\n\u003ch2\u003eWhat's in the kit\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 × Semax vial\u003c\/strong\u003e — lyophilised powder, 10mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 × bacteriostatic water, 3ml\u003c\/strong\u003e — for reconstitution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 × pen cartridge\u003c\/strong\u003e — empty, ready to fill\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e1 × insulin needle\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe cartridge fits our peptide pens. Our \u003ca href=\"\/pages\/peptide-calculator\"\u003ereconstitution calculator\u003c\/a\u003e will work out the concentration and draw volume for the water volume you use.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Unmixed kit — powder vial, diluent, cartridge and needle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 10mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSource compound:\u003c\/strong\u003e Semax — \u003ca href=\"\/products\/semax\"\u003ealso available as a lyophilised powder vial\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e Supplied dry; reconstituted by you at the point of use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store the sealed vial cool, dry and away from light. Refrigerate once reconstituted\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDispatch:\u003c\/strong\u003e Within 48 hours — each kit is assembled to order\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003eSemax is a synthetic heptapeptide analogue of the ACTH(4-10) fragment, developed in Russia and studied extensively there since the 1980s. Research indicates it influences expression of BDNF and NGF — two neurotrophic factors involved in neuronal growth and survival. Published studies have examined its effects on cognition, attention and memory, its neuroprotective activity in models of cerebral ischaemia, and its use in stroke recovery.\u003c\/p\u003e\n\u003cp\u003eResearch on Semax includes both human clinical studies, largely published in Russian-language journals, and animal models. Our summary of the published literature is here: \u003ca href=\"https:\/\/pepsource.co.uk\/blogs\/research\/semax-dosage-research\"\u003eSemax Dosage: What Studies Have Actually Investigated\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003eKits contain the same independently tested powder as our standalone vials — HPLC purity and mass-spectrometry identity, certified per batch and published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eReturns\u003c\/h2\u003e\n\u003cp\u003eKits are assembled to order. An unopened kit with all seals intact can be returned within 14 days — but once the vial, water or needle seal has been broken it cannot be accepted back on hygiene grounds, and anything already reconstituted cannot be returned. Faulty, damaged or incorrect items are always put right. See our \u003ca href=\"\/policies\/refund-policy\"\u003erefund policy\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-07-18T17:41:18+01:00","created_at":"2026-07-13T20:21:50+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Pen Refill","tags":["kits"],"variants":[{"id":53516004065608,"title":"10mg","option1":"10mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"price":"44.00","grams":20,"compare_at_price":null,"position":1,"product_id":10144101269832,"created_at":"2026-07-13T20:21:50+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83099115389256,"created_at":"2026-07-18T17:41:02+01:00","position":1,"updated_at":"2026-07-18T17:41:05+01:00","product_id":10144101269832,"variant_ids":[],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/5a64486d9586ac1716bed874e1b01020d6bc23ce6ec829e6a3daa118a8908402_74a6f611-3469-43bd-9bd2-b8abb02bb05c.jpg?v=1784392865","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["10mg"]}]},{"id":10144100811080,"title":"Selank Nasal Spray","handle":"selank-nasal-spray","body_html":"\u003cp\u003e\u003cstrong\u003eSelank — The Calm Peptide\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports calm without sedation\u003c\/li\u003e\n\u003cli\u003eInfluences GABA signalling\u003c\/li\u003e\n\u003cli\u003eSupports focus under stress\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eSelank nasal spray, prepared as a metered intranasal solution for laboratory research. Available in 10mg and 20mg high strength, both in a 10ml bottle.\u003c\/p\u003e\n\u003cp\u003eEach unit is reconstituted and filled individually at the point of order — we never hold pre-reconstituted stock on a shelf. Made-to-order items are dispatched within 48 hours.\u003c\/p\u003e\n\n\u003ch2\u003eStrength and concentration\u003c\/h2\u003e\n\u003cp\u003eBoth strengths are supplied in the same \u003cstrong\u003e10ml\u003c\/strong\u003e metered bottle. The difference is concentration, not volume:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e10mg \/ 10ml\u003c\/strong\u003e — 1mg per ml (standard strength)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20mg \/ 10ml\u003c\/strong\u003e — 2mg per ml (high strength, double the concentration)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 20mg bottle is prepared from twice the source peptide in the same volume of solution, so each metered actuation delivers twice the peptide of the 10mg preparation. Bottle size, actuation volume and number of sprays per bottle are identical between the two.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Metered nasal spray, made to order\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 10mg (1mg\/ml) and 20mg high strength (2mg\/ml) — both 10ml\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSource compound:\u003c\/strong\u003e Selank — \u003ca href=\"\/products\/selank\"\u003ealso available as a lyophilised powder vial\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e Reconstituted and filled to order, never pre-mixed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Refrigerate on arrival; keep away from light\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDispatch:\u003c\/strong\u003e Within 48 hours (made to order)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy the intranasal format\u003c\/h2\u003e\n\u003cp\u003eSelank is one of the peptides where the route of administration is central to the research rather than incidental. Intranasal delivery gives direct nose-to-brain transport along the olfactory and trigeminal nerve pathways, which partially bypasses the blood-brain barrier and avoids the first-pass metabolism that breaks down small peptides taken orally. Research indicates this achieves meaningfully higher central nervous system exposure than other routes.\u003c\/p\u003e\n\u003cp\u003eThis is why Selank was developed as an intranasal formulation, and why the majority of the published clinical literature on it uses the intranasal route.\u003c\/p\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003eSelank is a synthetic heptapeptide analogue of tuftsin, developed in Russia and also known as TP-7. It is studied chiefly as an anxiolytic, and what distinguishes it in the literature is that research reports anxiolytic activity without the sedation, cognitive dulling or dependence associated with benzodiazepines. Published work has examined its influence on GABAergic signalling, expression of BDNF, inhibition of enkephalin degradation, and attention and memory under stress conditions.\u003c\/p\u003e\n\u003cp\u003eResearch on Selank includes both human clinical studies, largely published in Russian-language journals, and animal models.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003eSprays are prepared from the same independently tested material as our powder vials — HPLC purity and mass-spectrometry identity, certified per batch and published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eReturns\u003c\/h2\u003e\n\u003cp\u003eMade-to-order items are prepared individually for you and are exempt from the 14-day cancellation right under the Consumer Contracts Regulations 2013. They cannot be returned or refunded unless faulty, damaged or not as described. See our \u003ca href=\"\/policies\/refund-policy\"\u003erefund policy\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-07-16T01:18:05+01:00","created_at":"2026-07-13T20:20:41+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Nasal Spray","tags":["made-to-order","nasal-spray"],"variants":[{"id":53554124095816,"title":"10mg","option1":"10mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":{"id":83106431762760,"product_id":10144100811080,"position":1,"created_at":"2026-07-19T18:35:38+01:00","updated_at":"2026-07-19T18:35:41+01:00","alt":"PepSource Selank nasal spray 10mg, made-to-order intranasal research peptide solution","width":1254,"height":1254,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/SELANK_NASAL_10MG.jpg?v=1784482541","variant_ids":[53554124095816]},"available":true,"price":"40.00","grams":50,"compare_at_price":null,"position":1,"product_id":10144100811080,"created_at":"2026-07-19T18:29:52+01:00","updated_at":"2026-09-24T08:53:48+01:00"},{"id":53969142612296,"title":"20mg","option1":"20mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":{"id":83763627917640,"product_id":10144100811080,"position":2,"created_at":"2026-09-03T00:43:02+01:00","updated_at":"2026-09-03T00:43:04+01:00","alt":"Selank Nasal Spray 20mg high strength - PepSource 10ml metered amber bottle, 99%+ purity, for research use only","width":1254,"height":1254,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/selank-nasal-spray-20mg-pepsource.jpg?v=1788392584","variant_ids":[53969142612296]},"available":true,"price":"75.00","grams":0,"compare_at_price":null,"position":2,"product_id":10144100811080,"created_at":"2026-09-03T00:30:39+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83106431762760,"created_at":"2026-07-19T18:35:38+01:00","position":1,"updated_at":"2026-07-19T18:35:41+01:00","product_id":10144100811080,"variant_ids":[53554124095816],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/SELANK_NASAL_10MG.jpg?v=1784482541","width":1254,"height":1254},{"id":83763627917640,"created_at":"2026-09-03T00:43:02+01:00","position":2,"updated_at":"2026-09-03T00:43:04+01:00","product_id":10144100811080,"variant_ids":[53969142612296],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/selank-nasal-spray-20mg-pepsource.jpg?v=1788392584","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["10mg","20mg"]}]},{"id":10144100778312,"title":"Semax Nasal Spray","handle":"semax-nasal-spray","body_html":"\u003cp\u003e\u003cstrong\u003eSemax — The Focus Peptide\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSupports cognitive function\u003c\/li\u003e\n\u003cli\u003eInfluences BDNF and NGF\u003c\/li\u003e\n\u003cli\u003eNeuroprotective in research models\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eSemax nasal spray, prepared as a metered intranasal solution for laboratory research. Available in 10mg and 20mg high strength, both in a 10ml bottle.\u003c\/p\u003e\n\u003cp\u003eEach unit is reconstituted and filled individually at the point of order — we never hold pre-reconstituted stock on a shelf. Made-to-order items are dispatched within 48 hours.\u003c\/p\u003e\n\n\u003ch2\u003eStrength and concentration\u003c\/h2\u003e\n\u003cp\u003eBoth strengths are supplied in the same \u003cstrong\u003e10ml\u003c\/strong\u003e metered bottle. The difference is concentration, not volume:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e10mg \/ 10ml\u003c\/strong\u003e — 1mg per ml (standard strength)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20mg \/ 10ml\u003c\/strong\u003e — 2mg per ml (high strength, double the concentration)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe 20mg bottle is prepared from twice the source peptide in the same volume of solution, so each metered actuation delivers twice the peptide of the 10mg preparation. Bottle size, actuation volume and number of sprays per bottle are identical between the two.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Metered nasal spray, made to order\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 10mg (1mg\/ml) and 20mg high strength (2mg\/ml) — both 10ml\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSource compound:\u003c\/strong\u003e Semax — \u003ca href=\"\/products\/semax\"\u003ealso available as a lyophilised powder vial\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreparation:\u003c\/strong\u003e Reconstituted and filled to order, never pre-mixed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Refrigerate on arrival; keep away from light\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDispatch:\u003c\/strong\u003e Within 48 hours (made to order)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy the intranasal format\u003c\/h2\u003e\n\u003cp\u003eSemax is one of the peptides where the route of administration is central to the research rather than incidental. Intranasal delivery gives direct nose-to-brain transport along the olfactory and trigeminal nerve pathways, which partially bypasses the blood-brain barrier and avoids the first-pass metabolism that breaks down small peptides taken orally. Research indicates this achieves meaningfully higher central nervous system exposure than other routes.\u003c\/p\u003e\n\u003cp\u003eThis is why Semax was developed as an intranasal formulation, and why the majority of the published clinical literature on it uses the intranasal route.\u003c\/p\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003eSemax is a synthetic analogue of the ACTH(4-10) fragment, developed in Russia and studied extensively there since the 1980s. Research indicates it influences expression of BDNF and NGF — two neurotrophic factors involved in neuronal growth and survival. Published studies have examined its effects on cognition, attention and memory, its neuroprotective activity in models of cerebral ischaemia, and its use in stroke recovery, where it has been applied clinically in Russia.\u003c\/p\u003e\n\u003cp\u003eResearch on Semax includes both human clinical studies, largely published in Russian-language journals, and animal models. Our summary of the published literature is here: \u003ca href=\"https:\/\/pepsource.co.uk\/blogs\/research\/semax-dosage-research\"\u003eSemax Dosage: What Studies Have Actually Investigated\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003eSprays are prepared from the same independently tested material as our powder vials — HPLC purity and mass-spectrometry identity, certified per batch and published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eReturns\u003c\/h2\u003e\n\u003cp\u003eMade-to-order items are prepared individually for you and are exempt from the 14-day cancellation right under the Consumer Contracts Regulations 2013. They cannot be returned or refunded unless faulty, damaged or not as described. See our \u003ca href=\"\/policies\/refund-policy\"\u003erefund policy\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-07-16T01:15:32+01:00","created_at":"2026-07-13T20:20:40+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Nasal Spray","tags":["best-seller","made-to-order","nasal-spray"],"variants":[{"id":53554124030280,"title":"10mg","option1":"10mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":{"id":83106431828296,"product_id":10144100778312,"position":1,"created_at":"2026-07-19T18:35:38+01:00","updated_at":"2026-07-19T18:35:41+01:00","alt":"PepSource Semax nasal spray 10mg, made-to-order intranasal research peptide solution","width":1254,"height":1254,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/SEMAX_NASAL_10MG.jpg?v=1784482541","variant_ids":[53554124030280]},"available":true,"price":"40.00","grams":50,"compare_at_price":null,"position":1,"product_id":10144100778312,"created_at":"2026-07-19T18:29:51+01:00","updated_at":"2026-09-24T08:53:48+01:00"},{"id":53969142645064,"title":"20mg","option1":"20mg","option2":null,"option3":null,"sku":null,"requires_shipping":true,"taxable":true,"featured_image":{"id":83763628147016,"product_id":10144100778312,"position":2,"created_at":"2026-09-03T00:43:09+01:00","updated_at":"2026-09-03T00:43:12+01:00","alt":"Semax Nasal Spray 20mg high strength - PepSource 10ml metered amber bottle, 99%+ purity, for research use only","width":1254,"height":1254,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/semax-nasal-spray-20mg-pepsource.jpg?v=1788392592","variant_ids":[53969142645064]},"available":true,"price":"75.00","grams":0,"compare_at_price":null,"position":2,"product_id":10144100778312,"created_at":"2026-09-03T00:30:45+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83106431828296,"created_at":"2026-07-19T18:35:38+01:00","position":1,"updated_at":"2026-07-19T18:35:41+01:00","product_id":10144100778312,"variant_ids":[53554124030280],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/SEMAX_NASAL_10MG.jpg?v=1784482541","width":1254,"height":1254},{"id":83763628147016,"created_at":"2026-09-03T00:43:09+01:00","position":2,"updated_at":"2026-09-03T00:43:12+01:00","product_id":10144100778312,"variant_ids":[53969142645064],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/semax-nasal-spray-20mg-pepsource.jpg?v=1788392592","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["10mg","20mg"]}]},{"id":10140864184648,"title":"Tesamorelin","handle":"tesamorelin","body_html":"\u003cp\u003e\u003cstrong\u003eTesamorelin — The Growth Hormone Booster\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncreases fat loss\u003c\/li\u003e\n\u003cli\u003eImproves body composition\u003c\/li\u003e\n\u003cli\u003eBoosts growth hormone levels\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eTesamorelin is a synthetic analogue of growth hormone-releasing hormone (GHRH), built on the full 44-amino-acid sequence with a trans-3-hexenoic acid group added to improve stability. It is supplied as a lyophilised powder in a sealed vial for laboratory and in-vitro research.\u003c\/p\u003e\n\u003cp\u003ePepSource supplies Tesamorelin in 10mg vials. Every batch is independently third-party tested for HPLC purity and mass-spectrometry identity, and the certificate of analysis for the batch you receive is published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Lyophilised powder, sealed vial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 10mg vials\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSequence \/ origin:\u003c\/strong\u003e Synthetic GHRH analogue — 44 amino acids plus trans-3-hexenoic acid\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store sealed vials cool, dry and away from light; freeze for long-term storage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReconstitution:\u003c\/strong\u003e Bacteriostatic water — see our \u003ca href=\"\/pages\/reconstitution-guide\"\u003ereconstitution guide\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003eTesamorelin acts on the growth hormone axis, stimulating the pituitary to release growth hormone and raising circulating IGF-1. Published research has examined its effect on visceral adipose tissue, where studies report reductions in deep abdominal fat; on body composition and lipid profile more broadly; and on cognitive function in older adults.\u003c\/p\u003e\n\u003cp\u003eTesamorelin is the most clinically established compound in our catalogue — it has been studied in human clinical trials and is approved by the FDA as Egrifta for HIV-associated lipodystrophy. Our summary of the published literature is here: \u003ca href=\"https:\/\/pepsource.co.uk\/blogs\/research\/tesamorelin-dosage-research\"\u003eTesamorelin Dosage: What Studies Have Investigated\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003eEach batch is tested by an independent analytical laboratory for HPLC purity and mass-spectrometry identity before release. Certificates are published per batch and searchable by lot code on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e — you can verify the exact vial you were sent.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-07-16T00:20:32+01:00","created_at":"2026-07-11T19:10:49+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Research Peptide","tags":["best-seller","powder"],"variants":[{"id":53508598759752,"title":"10mg","option1":"10mg","option2":null,"option3":null,"sku":"TSM10","requires_shipping":true,"taxable":true,"featured_image":{"id":83106430615880,"product_id":10140864184648,"position":1,"created_at":"2026-07-19T18:35:06+01:00","updated_at":"2026-07-19T18:35:10+01:00","alt":"PepSource Tesamorelin 10mg vial of lyophilised research peptide powder","width":1254,"height":1254,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/TESA_10_MG.jpg?v=1784482510","variant_ids":[53508598759752]},"available":true,"price":"50.00","grams":15,"compare_at_price":null,"position":1,"product_id":10140864184648,"created_at":"2026-07-11T19:10:49+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83106430615880,"created_at":"2026-07-19T18:35:06+01:00","position":1,"updated_at":"2026-07-19T18:35:10+01:00","product_id":10140864184648,"variant_ids":[53508598759752],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/TESA_10_MG.jpg?v=1784482510","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["10mg"]}]},{"id":10140864119112,"title":"KLOW Blend","handle":"klow-blend","body_html":"\u003cp\u003e\u003cstrong\u003eKLOW Blend — The Complete Repair Blend\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCombines BPC-157, GHK-Cu, TB-500 and KPV\u003c\/li\u003e\n\u003cli\u003eSupports skin and tissue repair\u003c\/li\u003e\n\u003cli\u003eAdds inflammatory support\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eKLOW Blend combines four research peptides in a single lyophilised vial — the GLOW combination with KPV added. It is supplied as a powder in a sealed vial for laboratory and in-vitro research.\u003c\/p\u003e\n\u003cp\u003ePepSource supplies KLOW Blend in an 80mg vial. Every batch is independently third-party tested for HPLC purity and mass-spectrometry identity, and the certificate of analysis for the batch you receive is published on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eBlend composition\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBPC-157 — 10mg\u003c\/li\u003e\n\u003cli\u003eGHK-Cu — 50mg\u003c\/li\u003e\n\u003cli\u003eTB-500 — 10mg\u003c\/li\u003e\n\u003cli\u003eKPV — 10mg\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTotal 80mg per vial, lyophilised together in a single vial.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct format:\u003c\/strong\u003e Lyophilised powder, sealed vial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable sizes:\u003c\/strong\u003e 80mg vial\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComposition:\u003c\/strong\u003e BPC-157 10mg, GHK-Cu 50mg, TB-500 10mg, KPV 10mg\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage:\u003c\/strong\u003e Store sealed vials cool, dry and away from light; freeze for long-term storage\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReconstitution:\u003c\/strong\u003e Bacteriostatic water — see our \u003ca href=\"\/pages\/reconstitution-guide\"\u003ereconstitution guide\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntended use:\u003c\/strong\u003e Laboratory research use only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eResearch Focus\u003c\/h2\u003e\n\u003cp\u003eKLOW takes the three peptides in our GLOW Blend and adds KPV. BPC-157 has been examined for tendon, ligament and muscle repair, gut mucosal integrity and angiogenesis. TB-500, a fragment of Thymosin Beta-4, has been studied for actin regulation, cell migration to injury sites and new blood-vessel formation. GHK-Cu, a copper tripeptide found naturally in human plasma, has been examined for collagen and elastin synthesis and skin remodelling. KPV, the C-terminal tripeptide fragment of alpha-MSH, has been studied for anti-inflammatory signalling, in models of intestinal inflammation, and for antimicrobial activity — which is what it contributes to the combination.\u003c\/p\u003e\n\u003cp\u003eResearch on BPC-157, TB-500 and KPV is predominantly in animal models and in-vitro studies; human clinical data is limited. GHK-Cu has additionally been studied in human topical trials.\u003c\/p\u003e\n\n\u003ch2\u003eTesting \u0026amp; Certificates of Analysis\u003c\/h2\u003e\n\u003cp\u003eEach batch is tested by an independent analytical laboratory for HPLC purity and mass-spectrometry identity before release. Certificates are published per batch and searchable by lot code on our \u003ca href=\"\/pages\/lab-results\"\u003elab results page\u003c\/a\u003e — you can verify the exact vial you were sent.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFor laboratory research use only.\u003c\/strong\u003e All products sold by PepSource are strictly for laboratory research purposes and are not intended for human or veterinary consumption. No dosing, administration or physiological guidance is provided.\u003c\/p\u003e","published_at":"2026-07-16T00:16:00+01:00","created_at":"2026-07-11T19:10:43+01:00","updated_at":"2026-09-24T08:53:48+01:00","vendor":"PEP SOURCE","product_type":"Research Peptide","tags":["best-seller","powder"],"variants":[{"id":53508598661448,"title":"80mg","option1":"80mg","option2":null,"option3":null,"sku":"KLOW80","requires_shipping":true,"taxable":true,"featured_image":{"id":83106428748104,"product_id":10140864119112,"position":1,"created_at":"2026-07-19T18:34:36+01:00","updated_at":"2026-07-19T18:34:40+01:00","alt":"PepSource KLOW Blend 80mg vial, BPC-157, GHK-Cu, TB-500 and KPV research peptide blend","width":1254,"height":1254,"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/KLOW_80_MG.jpg?v=1784482480","variant_ids":[53508598661448]},"available":true,"price":"75.00","grams":20,"compare_at_price":null,"position":1,"product_id":10140864119112,"created_at":"2026-07-11T19:10:43+01:00","updated_at":"2026-09-24T08:53:48+01:00"}],"images":[{"id":83106428748104,"created_at":"2026-07-19T18:34:36+01:00","position":1,"updated_at":"2026-07-19T18:34:40+01:00","product_id":10140864119112,"variant_ids":[53508598661448],"src":"https:\/\/cdn.shopify.com\/s\/files\/1\/0974\/5593\/1720\/files\/KLOW_80_MG.jpg?v=1784482480","width":1254,"height":1254}],"options":[{"name":"Strength","position":1,"values":["80mg"]}]}]}