Semax prices

FROM PEPTIDES CALCULATOR

About Semax

Source profile reviewed 2026-10-01 · Imported 2026-10-22. Read the full compound profile

Semax is a synthetic seven-residue peptide built at the Institute of Molecular Genetics of the Russian Academy of Sciences by joining the adrenocorticotropic hormone fragment 4-7 to a proline-glycine-proline tail that resists peptidases. It is registered as a medicine only in Russia, in two strengths that are used for quite different purposes: Semax 0.1% nasal drops, an over-the-counter nootropic registered in December 2011 for cognitive and cerebrovascular complaints, and the prescription-only Semax 1% drops registered the same month for the acute period of moderate to severe ischemic stroke. Published work is dominated by Russian-language studies from the group that developed the compound, with rodent evidence that a single dose raises hippocampal BDNF and trkB expression. Outside Russia it is sold as an unapproved research chemical and used as a self-administered nootropic, an application with no clinical support.

Formula

C37 H51 N9 O10 S

Molar mass

813.9 g/mol

CAS number

80714-61-0

Amino acids

7

Research evidence described in the source

Limitations noted in the source

• The clinical literature is predominantly Russian and often falls short of modern trial-reporting standards.
• Imaging and biomarker changes do not establish cognitive enhancement or stroke efficacy.
• A calculator preset is a recorded research convention, not a recommendation or evidence of clinical benefit.
• Identity, purity, sterility, and stability can vary substantially outside regulated manufacturing.

Background is reproduced from Peptides Calculator with attribution. The source describes compound-level research. It does not evaluate the identity, quality or suitability of a listed supplier’s product or batch.