Cognitive

Selank Dosing & Reconstitution Calculator

Anxiolytic peptide based on tuftsin, supporting calm focus and immune modulation.

TL;DR — Selank is a cognitive peptide with a typical starting dose of 500 µg. For a 10 mg vial, add 2 mL bacteriostatic water to yield 5000 µg/mL.
500 µg
Start Dose
10 mg
Vial
2 mL
BAC Water
5000
µg/mL
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Frequently Asked
How do I reconstitute Selank?
Add 2 mL of bacteriostatic water to a 10 mg vial, injecting slowly down the inside wall. Swirl gently; never shake. This yields a concentration of 5000 µg/mL.
What is the recommended dose of Selank?
A typical research dose is 500 µg. Consult the ASCEND calculator for your specific vial concentration and draw volume.
How many doses are in a Selank vial?
A 10 mg vial reconstituted with 2 mL BAC water yields approximately 20 doses at 500 µg each.
Peptide Intelligence
What is the mechanism of Selank?
Selank is a synthetic analog of the immunopeptide tuftsin (Thr-Lys-Pro-Arg). It modulates the expression of IL-6, IL-1β, and other cytokines, increases enkephalin metabolism, and affects serotonin, dopamine, and GABA neurotransmitter systems.
What is the half-life of Selank?
Selank has a half-life of approximately 1–2 minutes in plasma, though behavioral effects persist for several hours, suggesting receptor-mediated memory effects or metabolite activity. It is typically used intranasally or subcutaneously.
How does Selank compare to benzodiazepines as an anxiolytic?
Selank modulates GABAergic tone without binding the GABA-A benzodiazepine site directly, resulting in anxiolytic effects without sedation, tolerance, or withdrawal risk seen with benzodiazepines. Russian clinical literature researches it as a non-habit-forming option for anxiety disorders.
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Primary Sources
Anxiolytic Mechanism (Bull Exp Biol Med 2008)
Data last reviewed 2026-04-19 · Methodology →
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