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N-Acetyl Semax vs Semax

A neutral, side-by-side look at N-Acetyl Semax and Semax: what each one is, its class, half-life, storage, and the public sources behind it. Educational reference only, not medical advice, dosing, or a recommendation to use either compound.

AttributeN-Acetyl SemaxSemax
CategoryCognitive / LongevityCognitive / Longevity
Half-lifeNot established in a public sourceMinutes in plasma
Common vialVaries5, 10, 30 mg
ReferenceVerifiedVerified

What is N-Acetyl Semax?

An acetylated analog of Semax, itself a short fragment of adrenocorticotropic hormone with the hormonal activity removed. Studied largely in Russian literature for effects on the central nervous system. Not approved outside its country of origin.

Sources

  • PubChem compound record
  • Doklady Biological Sciences 2020: connectomic study of Selank and Semax effects
Read the N-Acetyl Semax profile →

What is Semax?

A synthetic heptapeptide analog of the ACTH(4-10) fragment, studied as a neuroprotective and nootropic compound. Reported mechanisms include upregulation of neurotrophins (BDNF and NGF) and interaction with melanocortin and enkephalin systems.

Sources

  • Peer-reviewed ACTH(4-10) analog neuroprotection (PMC8226508)
Read the Semax profile →

Educational reference only, compiled from public sources. Not medical advice, diagnosis, treatment, or a dosing recommendation, and not a recommendation to use any compound. Many compounds listed are research materials not approved for human use. Consult a qualified professional.