Verified Peptide ReviewLast reviewed: 30 March 2026
Compound Profile · Cognitive
Semax
Semax is a synthetic heptapeptide developed in Russia, studied for nootropic, anxiolytic and neuroprotective effects.
LegalResearch onlyEvidenceEmergingHuman useNot approved
6.8/ 10
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Quick verdict
Reported neuroprotective effects in Russian and some Asian trials. Western clinical evidence is limited.
Reality check
What this isn't
- Not approved for human use — research-only context
- No regulator has approved human use
- Evidence base is early — long-term data limited
- Side-effect profile not fully characterised
- Educational only — not medical advice
Full Semax review
A synthetic peptide fragment derived from ACTH (adrenocorticotropic hormone).
Studied for effects on cognition, mood, neuroprotection and stress resilience.
Looking at alternatives?
Compounds with comparable research interest but different evidence, regulatory status, or risk profile.