For Research Use Only – Not for Human Consumption. For Research Use Only. Not for Human Consumption. Not for diagnostic, therapeutic or medical use. Statements have not been evaluated by the FDA.
Selank: A Tuftsin-Based Peptide With a Small, Regional Evidence Base
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Key points
- A synthetic heptapeptide (Thr-Lys-Pro-Arg-Pro-Gly-Pro) based on the immune peptide tuftsin.
- Evidence consists of small studies, mostly from Russia.
- Approved in Russia but not by the FDA.
What it is
Selank is a laboratory peptide of seven amino acids, about 752 daltons, designed from the sequence of tuftsin, a natural immune-related peptide.
How researchers study it
Studies cover central-nervous-system models, stress-response systems, cognitive assays and GABA-related pathways.
What the evidence shows
The studies are small and mostly come from a single country, which limits how far the conclusions can be trusted. This guide makes no claims about mood, stress or cognition.
Regulatory status
Selank is approved in Russia, where it is typically given by nasal spray, but it is not approved by the FDA and is not approved in the United States.



