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Semax

Peptide reference entry

What it is: Synthetic neuropeptide
What it does: Studied for cognition, stress response, and neuroprotection
Status: Experimental
Evidence: Low. Mostly preclinical and limited human data.
Uses: Cognition; neuroprotection research

Caution. Human evidence is limited and regionally variable.

Summary

Semax is a synthetic peptide fragment of ACTH(4-10) investigated in Russia for cognitive and neuroprotective effects. Preclinical data suggest modulation of neurotrophic factors and stress responses, with small human studies reporting subjective cognitive benefits. Outside certain regions, evidence and regulatory status are limited, and it is not approved for general neurological use.

Checked Jul 15, 2026.

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This entry summarises published information in plain language. It is not medical advice, a dosing recommendation or a substitute for a qualified healthcare professional. Many peptides are not approved for human use, and legal status varies by country. Check anything you rely on against primary sources.