Wellness
Nootropic peptides: semax, selank, and cognitive claims
Russian-developed heptapeptides in biohacking circles—what is known and what is hype.
Semax
An ACTH 4-10 analog approved as nasal drops in Russia for some neurological indications. Western biohackers report focus effects; high-quality trials in healthy adults are sparse.
Selank
A tuftsin analog marketed for anxiety without sedation. Mostly anecdotal and Russian clinical literature.
Route matters
Nasal sprays and injectables from gray-market sources raise sterility and dosing concerns. Not interchangeable with prescription nootropics.