Research Compound
Semax: what it is & how it’s tested
Semax is a synthetic peptide derived from a fragment of adrenocorticotropic hormone (ACTH), extended with a short stabilising sequence. It is supplied lyophilised as a research compound for in vitro laboratory study only.
For in vitro laboratory research only. Not for human or animal consumption; not intended to diagnose, treat, cure or prevent any condition. 18+.
Semax is a synthetic peptide derived from a fragment of adrenocorticotropic hormone (ACTH), extended with a short stabilising sequence. It is supplied lyophilised as a research compound for in vitro laboratory study only.
What Semax is
Semax is a short synthetic peptide based on the ACTH(4-10) fragment with an added Pro-Gly-Pro sequence that improves stability. It is manufactured and studied as a defined research compound.
Its sequence is confirmed by mass spectrometry and its purity measured by HPLC, so each batch can be reported on an independent Certificate of Analysis.
Where Semax appears in research
In the research literature, Semax is studied in neuroscience and cognition research models. This describes the research domain in which the compound appears, not a claim of any effect. Semax is not a medicine, supplement or cosmetic, and is not approved for human or veterinary use.
How Semax should be tested
Quality is a matter of evidence, not the label. A credible supplier tests every batch at an independent laboratory: HPLC measures purity as a percentage (commonly to a ≥99% benchmark), and mass spectrometry confirms the compound’s identity.
The result should be a batch-specific Certificate of Analysis you can verify at source. Learn how to read a COA, or see BioHack London’s independent Semax reports.
Storage, handling and reconstitution
Lyophilised (freeze-dried) Semax is generally kept cool, dry and out of light. Reconstitution — dissolving it in a suitable solvent such as bacteriostatic water — is done immediately before laboratory use, and the reconstituted solution is typically refrigerated and used within a limited period.
Our reconstitution calculator helps work out solvent volumes, and bacteriostatic water is available in the range.
Semax: frequently asked questions
What is Semax?
Semax is a synthetic peptide derived from a fragment of adrenocorticotropic hormone (ACTH), with a short added sequence for stability. It is supplied as a lyophilised research compound for in vitro laboratory research use only.
What is Semax derived from?
Its core sequence is based on the ACTH(4-10) fragment, extended with a Pro-Gly-Pro tail that improves its stability. It is studied as a distinct research compound.
How is Semax tested?
A credible supplier tests each batch at an independent laboratory — HPLC for purity (commonly to a ≥99% benchmark) and mass spectrometry to confirm identity — and publishes a batch-specific Certificate of Analysis you can verify at source.
Is Semax for human use?
No. Semax is supplied strictly for in vitro laboratory research. It is not for human or animal consumption and is not intended to diagnose, treat, cure or prevent any condition. Purchasers must be 18 or over.
Related research compounds
Semax, independently tested and verifiable.
Every batch is tested to a minimum 99% purity, with a Certificate of Analysis you can verify.