
Pen Refill
SS-31 Pen Refill Kit
SS-31 — The Mitochondrial Protector
- Supports mitochondrial function
- Targets cardiolipin
- Supports cellular energy
Overview
This product is supplied as a kit, not as a pre-filled cartridge. 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.
A 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.
What's in the kit
- 1 × SS-31 vial — lyophilised powder, 10mg
- 1 × bacteriostatic water, 3ml — for reconstitution
- 1 × pen cartridge — empty, ready to fill
- 1 × insulin needle
The cartridge fits our peptide pens. Our reconstitution calculator will work out the concentration and draw volume for the water volume you use.
Key Specifications
- Product format: Unmixed kit — powder vial, diluent, cartridge and needle
- Available sizes: 10mg
- Source compound: SS-31 (elamipretide) — also available as a lyophilised powder vial
- Purity: Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis
- Preparation: Supplied dry; reconstituted by you at the point of use
- Storage: Store the sealed vial cool, dry and away from light. Refrigerate once reconstituted
- Dispatch: Within 48 hours — each kit is assembled to order
- Intended use: Laboratory research use only
Research Focus
SS-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.
SS-31 has been studied in human clinical trials. Our summary of the published literature is here: SS-31, MOTS-c & NAD+ Dosage: What Studies Show.
Testing & Certificates of Analysis
Kits contain the same independently tested powder as our standalone vials — HPLC purity and mass-spectrometry identity, certified per batch and published on our lab results page.
Returns
Kits 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 refund policy.
For laboratory research use only. 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.
Shipping & storage
In-stock items ordered before 12pm Monday to Friday are posted the same day. Made-to-order items (pen refills and nasal sprays) are prepared individually for your order and dispatch within 48 hours. Pre-order items dispatch within 28 days. Everything ships in insulated, discreet packaging — full detail in our Shipping policy.
Store lyophilised vials cool, dry and away from light; keep sealed vials frozen for long-term storage.
Testing & COA
Our compounds are independently third-party tested for HPLC purity and mass-spec identity. Certificates of analysis are published on our lab results page or available on request.