Cognition & focus
Studied in preclinical models of memory, attention and learning.
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Synthetic heptapeptide · neuropeptide for cognition research
$50.00
CAD · taxes includedSize: 10mg vial
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Semax is a synthetic heptapeptide, a chain of seven amino acids. It's built on a short fragment of adrenocorticotropic hormone (ACTH 4–7) with a Pro-Gly-Pro tail added, which makes it more stable than the original fragment.
It was developed in Russia in the 1980s and has since been explored in laboratory research on cognition, neuroprotection and brain-derived neurotrophic factor (BDNF) signalling. Each Monark vial contains 10mg of lyophilized peptide, tested by an independent laboratory.
Every batch is tested for purity by an independent laboratory, and the results are recorded on a certificate of analysis (COA).
Request the COA for this productSupplied as lyophilized (freeze-dried) powder in a sealed vial. Keep sealed vials cool, dry and away from light, and handle using standard laboratory practice. Our free Ultimate Peptide Guide covers storage and record-keeping in detail.
All Monark products are sold for laboratory research use only. Not for human or veterinary use. Not intended to diagnose, treat, cure or prevent any disease.

The peptide
Semax starts from ACTH 4–7, a short piece of a natural hormone, and adds three amino acids (Pro-Gly-Pro) that help protect it from breaking down quickly.
Unlike full ACTH, it isn't studied for hormonal effects. Research focuses instead on its activity in the brain, including its links to neurotrophic factors such as BDNF.
In the literature
Studied in preclinical models of memory, attention and learning.
Explored in laboratory research on how nerve cells respond to stress and injury.
Investigated for its effects on BDNF and related growth-factor pathways.
Summaries of published preclinical research, for reference only. Not a claim of any effect in humans or animals.
Why Monark
| Feature | Monark | Typical suppliers |
|---|---|---|
| Independent third-party testing on every batch | Varies | |
| Certificate of analysis available on request | Varies | |
| ≥99% purity standard | Varies | |
| Ships from Vancouver, BC | Varies | |
| Free shipping anywhere in Canada | Varies | |
| Real support from a Canadian team | Varies |
A fragment of adrenocorticotropic hormone (ACTH 4–7), with a Pro-Gly-Pro sequence added for stability.
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Yes. Your mix & match discount applies first, then Subscribe & save takes another 15% off any subscribed items.
All Monark products are sold for laboratory research use only. Not for human or veterinary use. Not intended to diagnose, treat, cure or prevent any disease.
As lyophilized (freeze-dried) powder in a sealed vial. Keep sealed vials cool, dry and away from light. Our free Ultimate Peptide Guide covers storage and handling in detail.
Yes. Every batch is tested by an independent laboratory. Contact us any time to request the certificate of analysis (COA) for your batch.
Free, fast shipping anywhere in Canada. You'll get a tracking number by email as soon as your order ships.
Get The Ultimate Peptide Guide free when you join our research community.