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Statements on this site have not been evaluated by the FDA. Compounded preparations are subject to applicable state and federal regulations. Availability and eligibility vary.
Selank Peptide
Anxiolytic-style peptide researched for stress modulation.
What is Selank?
Selank is a anxiolytic · nootropic peptide studied for generalized anxiety models and bdnf expression. Below is an educational overview of Selank peptide benefits, mechanism, common research protocols, dosage references, and known side effects.
Selank in plain language
Selank is a synthetic analogue of the immunomodulatory peptide tuftsin, studied for anxiolytic and cognitive-support effects without sedation.
- Classification: research peptide; registered in Russia, not FDA-approved.
- Proposed mechanism: modulation of GABAergic signaling, serotonin turnover, and enkephalin degradation.
- Most-studied areas: generalized anxiety models, stress response, and attention.
- Administration in research: typically intranasal.
- Evidence level: small Russian clinical studies; no large independent trials.
- Frequently compared with: semax, its more stimulating counterpart from the same research tradition.
Machine-readable version: /peptide/selank/summary
Selank Mechanism of Action
A synthetic analog of the immunomodulatory peptide tuftsin. Research suggests it modulates GABAergic and serotonergic systems and influences expression of brain-derived neurotrophic factor without the sedation or dependence profile of benzodiazepines.
Selank Research Areas & Benefits
Selank Dosage & Common Research Protocols
Primary administration route in Russian clinical studies.
Protocols summarized for educational reference from published research. Not dosing guidance.
Selank Research Protocol Table
Structured summary of dosing, routes, and durations as described in published research and FDA labels. Educational reference only — not dosing guidance.
| Context | Population | Route | Dose | Duration | Notes |
|---|---|---|---|---|---|
| Generalized anxiety research (human pilot studies) | Adults with generalized anxiety disorder in Russian clinical studies | Intranasal solution (0.15%) | Commonly cited as 250–300 mcg/day divided across nostrils | 14 days in most reported study courses | Published mainly in Russian-language literature; Selank is not FDA-approved and has no Western regulatory dossier. |
| Cognitive and attention research | Healthy adult volunteers | Intranasal | Single doses in the 100–400 mcg range reported | Acute, single-session testing | Outcome measures were attention and short-term memory tasks; sample sizes were small. |
| Preclinical anxiolytic models | Rodent | Intraperitoneal or intranasal | Typically 100–300 mcg/kg | Acute to 7–14 days | Effects attributed to modulation of GABA-A expression, enkephalinase inhibition, and BDNF signaling. |
Selank — Frequently Asked Questions
What is a commonly referenced Selank dose in research?+
Published Russian clinical work most often describes an intranasal 0.15% solution delivering roughly 250–300 mcg per day over a two-week course. No FDA-approved dose exists, and these figures describe study protocols rather than a recommendation.
How is Selank administered in studies?+
Almost all human studies use an intranasal spray or drops, because the peptide is degraded quickly in the gastrointestinal tract. Preclinical models also use intraperitoneal injection.
How long does Selank stay active?+
Selank is a heptapeptide (a tuftsin analogue stabilized with a Pro-Gly-Pro tail), and plasma half-life is reported in minutes. Study designs therefore rely on repeated daily intranasal dosing rather than long-acting exposure.
Is Selank the same as Semax?+
No. Both are Russian-developed regulatory peptides with a Pro-Gly-Pro motif, but Semax is an ACTH(4-10) analogue studied more for attention, neuroprotection and BDNF, while Selank derives from tuftsin and is studied more for anxiety and immune modulation.
Is Selank approved anywhere?+
Selank is registered as a medicine in Russia. It is not approved by the FDA or EMA, is not available through licensed U.S. pharmacies, and material sold online is unverified for identity and purity.
What safety signals appear in Selank research?+
Reported studies describe mild, transient effects such as nasal irritation, headache, or drowsiness, with no serious adverse events in short courses. Long-term human safety data do not exist, which is the main limitation of the evidence base.
Selank Studies & Cited Research
Selank in generalized anxiety disorder
Comparable anxiolytic effect to medazepam without sedation or withdrawal.
Why we trust this source: Published in a peer-reviewed scientific journal with editorial and reviewer oversight.
Citations are linked to PubMed, Google Scholar, and Crossref searches so you can verify the source independently. All references are reviewed during our editorial passes (last reviewed June 1, 2026).
Selank Side Effects & Safety Considerations
- •Not FDA-approved.
- •Most studies are Russian clinical literature.
Common questions about Selank
Research stacks featuring Selank
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Educational Information Only — Not Medical Advice
All content on this page is for educational and informational purposes only. It is not medical advice, diagnosis, or treatment. We make no claims that any peptide can diagnose, treat, cure, or prevent any disease. Peptides discussed are not FDA-approved for the indications listed unless explicitly stated otherwise.
Always consult a licensed healthcare provider before beginning any wellness protocol. Statements have not been evaluated by the FDA. Compounded preparations are subject to applicable state and federal regulations. Availability, eligibility, and pricing may vary.
Key references for Selank
Primary sources reviewed by the Peptides.cafe research team. Links open the original PubMed record, journal listing, or regulatory notice.
- [1]Anxiolytic activity of the peptide Selank in generalized anxiety disorderBulletin of Experimental Biology and Medicine · 2008
One of the few human anxiety datasets; small sample, Russian-language programme.
- [2]Selank enhances the effect of GABA and modulates BDNF expressionJournal of Molecular Neuroscience / Doklady Biological Sciences · 2016
Preclinical mechanism work behind the GABAergic and BDNF hypotheses.
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