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Cognitive Peptide

Selank

4.9 (87 reviews)

Selank is a synthetic heptapeptide analog of the immunomodulatory peptide tuftsin, studied for its anxiolytic, nootropic, and immune-modulating properties in preclinical and clinical research.

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Description

What is Selank?

Selank is a synthetic heptapeptide developed at the Institute of Molecular Genetics of the Russian Academy of Sciences. It is based on the naturally occurring immunomodulatory peptide tuftsin (Thr-Lys-Pro-Arg), with the addition of a Pro-Gly-Pro sequence that enhances metabolic stability.

Selank has been approved in Russia as a prescription medication for anxiety and neurasthenia. It is classified as an anxiolytic peptide and is one of the few peptides with regulatory approval for anxiety-related conditions, though it has not been evaluated by the FDA or EMA.

Research has focused on its effects on GABA neurotransmission, enkephalin metabolism, brain-derived neurotrophic factor (BDNF) expression, and immune function. Selank has shown activity in preclinical models of anxiety, depression, and immune dysregulation.

Research-grade Selank is sold strictly for laboratory and research purposes only.

Research Applications

Areas of Investigation

Anxiety

Anxiolytic Research

Studied for anti-anxiety effects through modulation of GABA neurotransmission and enkephalin metabolism without sedation or dependence.

Immunity

Immune Modulation

Investigated for its effects on immune cell function derived from its tuftsin-based structure, supporting balanced immune responses.

Cognition

Cognitive Enhancement

Researched for nootropic effects on memory and learning through BDNF upregulation and neurotransmitter modulation.

Neurotransmitters

Neurotransmitter Research

Explored for effects on GABAergic, serotonergic, and dopaminergic systems in preclinical models.

Compound Profile

Technical specifications

What is Selank?

Molecular Profile

Sequence

TKPRPGP

Molecular Formula

C₃₃H₅₇N₁₁O₉

Molecular Weight

751.87 g/mol

Appearance

White lyophilized powder

Form

Lyophilized (freeze-dried)

Handling & Shelf Life Guidelines

Storage & Stability

Storage (Pre-Reconstitution)

Store below -18°C, desiccated, away from light and moisture.

Storage (Post-Reconstitution)

Refrigerate at 2–8°C. For longer storage, aliquot and store below -18°C. Avoid freeze-thaw cycles.

Shelf Life

24 months from date of manufacture when stored as directed

Sensitivity Notes

Sensitive to heat, light, and moisture. Keep sealed until use.

Compliance & Clinical Overview

Regulatory & Research Status

FDA Status

Not FDA approved. Approved in Russia for anxiety and neurasthenia.

WADA Classification

Not currently specifically listed as a prohibited substance.

Clinical Trial Status

Published studies on anxiolytic effects, GABA modulation, immune function, and BDNF expression.

Published Studies

Published studies on anxiolytic effects, GABA modulation, immune function, and BDNF expression.

Research Disclaimer

For laboratory and research purposes only. Not intended for human consumption.

COA's (Certificate of Analysis)

Third Party Tested by Freedom Diagnostics

99.37%

Purity

Variant

N-Acetyl Slelank Amidate

Lot #

GLX-SELANK-10MG-A

Labelled

10mg

Actual

13.78mg

Tested

2/9/2026

View COA

Frequently Asked Questions

Common questions about Selank research

What is Selank?

Selank is a synthetic heptapeptide based on the naturally occurring immunomodulatory peptide tuftsin. Developed in Russia, it is studied for its anxiolytic, nootropic, and immune-modulating properties.

Is Selank approved anywhere?

Yes. Selank is approved in Russia for the treatment of anxiety and neurasthenia. It has not been evaluated by the FDA or EMA.

How should Selank be stored?

Lyophilized Selank should be stored below -18°C, away from light and moisture. Once reconstituted, refrigerate at 2–8°C and use within 14 days.

How does Selank differ from Semax?

Both are Russian-developed heptapeptides. Selank is tuftsin-based and focuses on anxiety reduction and immune modulation. Semax is ACTH-based and focuses on cognitive enhancement and neuroprotection.

Is Selank FDA approved?

No. Selank is not approved by the FDA. It is sold as a research peptide for laboratory purposes only.

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Every batch is independently tested, documented, and tied to a specific lot number prior to release. If documentation is missing or inconsistent, we will make it right.

Selank

Description