Peptide library / Brain & sleep / Selank
Selank
A synthetic analog of tuftsin used as a nasal anti-anxiety peptide in Russia.
Effects studied or claimed
What it is used or promoted for, and where each effect has actually been seen
- Generalized anxietySmall human studies
- Cognitive functionSmall human studies
- Immune modulationSmall human studies
How it is thought to work
Selank is based on a natural immune peptide and is reported to modulate GABA and serotonin signaling, though the mechanisms are not well characterized.
What the evidence shows
Small studies from Russia reported anxiety reduction comparable to a benzodiazepine without sedation. These findings have not been replicated in independent large trials.
Safety and unknowns
Reported to be well tolerated, but long-term safety outside Russia is not established.
Regulatory status
Registered in Russia. Not FDA-approved.
Regulatory status changes quickly. This entry was last reviewed on 27 October 2026. Confirm current status with the FDA before relying on it.
More in Brain & sleep
Semax
Wellness and performanceA seven amino acid peptide derived from ACTH, used as a nasal spray in Russia after stroke.
Trofinetide
FDA-approvedA synthetic analog of a small brain peptide approved for Rett syndrome.
Pinealon
Wellness and performanceA three amino acid peptide from the Khavinson group, studied for brain protection.
General information, not medical advice. Do not buy or inject unregulated peptides.