Content reviewed by clinical research staff

Last reviewed: March 2026Sources: PubMed, FDA, WADA Prohibited List

Evidence graded using the PeptideScholar A-D system.

Selank

Synthetic tuftsin analog7 amino acids

BHuman Studies
80
Good Credibility
2 cited studies | Evidence level B

Selank is a synthetic peptide developed at the Institute of Molecular Genetics of the Russian Academy of Sciences. It is approved in Russia as an anxiolytic and nootropic medication.

Mechanism of Action

Modulates GABA and serotonin neurotransmission. Inhibits enkephalin-degrading enzymes, increasing endogenous enkephalin levels. Enhances BDNF expression.

Benefits

  • Anxiolytic effects demonstrated in Russian clinical trials[2]
  • Nootropic and cognitive-enhancing properties[1]
  • Approved and marketed in Russia as a nasal spray[1]
  • No sedation or addiction potential observed[1]
Not medical advice - research-reported information only

This content is for informational purposes only and does not constitute medical advice.

Selank - Dosing in Published Research

Reported routes: Intranasal, Subcutaneous injection
Russian approved dosing: 150-300 mcg intranasal 3 times daily for up to 14 days. Not FDA approved.

The dosing information above is sourced from published research literature and clinical trials. These are not recommendations. Individual responses vary. Always consult a healthcare provider before considering any peptide-based therapy.

Side Effects

  • Generally well-tolerated in Russian clinical studies
  • Mild fatigue reported rarely[1]
  • Nasal irritation with intranasal use[1]
  • Limited Western clinical data[1]

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Selank is not FDA-approved. Always consult a licensed healthcare provider before considering any peptide.

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References

  1. 1.Selank Administration Affects the Expression of Some Genes Involved in GABAergic Neurotransmission.. Front Pharmacol, 2016. "Selank modulated GABA neurotransmission gene expression, supporting anxiolytic mechanism of action" [PMID: 26924987]
  2. 2.[Efficacy and possible mechanisms of action of a new peptide anxiolytic selank in the therapy of generalized anxiety disorders and neurasthenia].. Zh Nevrol Psikhiatr Im S S Korsakova, 2008. "Selank showed anxiolytic activity comparable to benzodiazepines without sedation or muscle relaxation in clinical trials" [PMID: 18454096]

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