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.
How many IU is 500 µg of Selank on a syringe?
With a 10 mg vial reconstituted in 2 mL bacteriostatic water, the concentration is 5000 µg/mL. For a 500 µg dose: Volume = 500 µg ÷ 5000 µg/mL = 0.1 mL. Draw to the 10 line on a 100-unit insulin syringe. You can adjust these values in the ASCEND calculator for any vial size.
What does a Selank dosage calculator do?
A Selank dosage calculator converts your vial size and BAC water volume into an exact syringe draw in IU. Enter your vial strength (10 mg), reconstitution volume (2 mL), and target dose to get the precise line to draw on an insulin syringe.
What is the Selank reconstitution calculator formula?
Draw volume (mL) = Dose (µg) divided by Concentration (µg/mL). For a 10 mg vial with 2 mL BAC water: concentration = 5000 µg/mL. For a 500 µg dose, the ASCEND calculator gives the exact IU line on your syringe instantly.
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.
Also Explore
Research Guides
Bacteriostatic Water Guide
What it is & why it matters for reconstitution
How Much BAC Water for Selank?
10 mg vial reconstitution recipe + concentration table
Selank on Insulin Syringe
500 µg draw on 30u / 50u / 100u syringes
Selank + Semax Stack
BDNF upregulation + anxiolytic
Insulin Syringe Guide
Choosing the right gauge & volume for your draw
Multi-Lab Verification Standard
How ASCEND ensures dosing accuracy
Primary Sources
Anxiolytic Mechanism (Bull Exp Biol Med 2008)
Data last reviewed 2026-06-03 · Methodology →
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