Nootropic peptides and brain health
Focus, memory, and mood all ride on how well brain cells signal and repair. Nootropic peptides — semax and selank are the ones most people ask about — were developed in Russian research programs and are studied for cognitive support and calm focus.
These articles unpack how they're thought to work, what the human evidence actually looks like, and how prescribed use differs from what you might read on forums. A licensed provider reviews every request; not everyone qualifies.
4 articles on this topic
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Oxytocin Peptide Beyond the 'Love Hormone'
A 2025 meta-analysis pooling 20 effect estimates from 13 human studies found no overall effect of oxytocin on non-social executive function — one number that explains why this molecule's science reads nothing like its nickname.
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What Is Selank Used For?
Selank is a Russian-developed heptapeptide studied mostly for anxiety, and its pivotal human trial put 62 patients with generalized anxiety disorder and neurasthenia head to head against the benzodiazepine medazepam.
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The Difference Between Semax and Selank
Both peptides are seven amino acids long and share the same Pro-Gly-Pro tail; what separates them is parentage — Semax comes from a fragment of a pituitary hormone, Selank from a fragment of an antibody.
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Semax Peptide: How It Works in the Brain
How does the Semax peptide work? Most of the mechanism evidence is rodent, almost all of the human evidence is intranasal, and the real picture is narrower — and more interesting — than the internet suggests.