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Semax is a synthetic peptide made of seven amino acids. It joins a short fragment of adrenocorticotropic hormone (ACTH), amino acids 4 to 7, to three extra amino acids (proline, glycine and proline) that make it more stable. It is often described as an analog of ACTH(4-10) and was developed by researchers in Russia.
Semax is registered as a medicine in Russia. That registration does not carry over to the United States, where a drug needs its own FDA approval before it can be marketed.
Current status: Not FDA-approved.
In practical terms, Semax has not gone through the FDA review that a drug must pass before it can be marketed for use in people. There is no FDA-approved product that contains it.
Peptide Labs does not sell this compound. This page is general information, not medical advice. Our Peptide Guide exists to explain what these compounds are and how they are regulated, not to supply them.
Anyone with questions about Semax should speak with a licensed healthcare provider, who can explain the current evidence and the legal status in plain terms.
See the full list of compound profiles in the Peptide Guide.
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