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Semax

Semax

Semax 10mg lyophilised powder vial, third-party tested for purity and identity. UK dispatch, tracked delivery. Laboratory research use only.

From £35.00

In stock

Batch 5mg-B3 · 99.453% purity · tested 16 Mar 2026View certificate
Supplied strictly for in-vitro research. Not for human or veterinary use, and not a medicine, supplement or cosmetic.
Strength10mg
Preparation

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Semax — The Focus Peptide

  • Supports cognitive function
  • Influences BDNF and NGF
  • Neuroprotective in research models

Overview

Semax is a synthetic heptapeptide analogue of the ACTH(4-10) fragment, modified so that it carries no hormonal activity of its own. Developed in Russia, it is supplied as a lyophilised powder in a sealed vial for laboratory and in-vitro research.

PepSource supplies Semax 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 lab results page.

Key Specifications

  • Product format: Lyophilised powder, sealed vial
  • Available sizes: 10mg vials
  • Sequence / origin: Synthetic heptapeptide analogue of ACTH(4-10)
  • Purity: Verified by HPLC on every batch — the measured figure for your lot is published on its certificate of analysis
  • Storage: Store sealed vials cool, dry and away from light; freeze for long-term storage
  • Reconstitution: Bacteriostatic water — see our reconstitution guide
  • Also available as: Semax nasal spray — the route used in most published Semax research
  • Intended use: Laboratory research use only

Research Focus

Semax has been studied extensively in Russia 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.

Research on Semax includes both human clinical studies, largely published in Russian-language journals, and animal models. Our summary of the published literature is here: Semax Dosage: What Studies Have Actually Investigated.

Testing & Certificates of Analysis

Each 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 lab results page — you can verify the exact vial you were sent.

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.

Compound
Semax

Certificate of analysis

Current batch: 5mg-B3 · 99.453% purity · tested 16 Mar 2026

Janoshik Analytical · verify with SN4ADQ57A923

Open the certificate

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