COGNITIVE · DOSAGE CALCULATOR
Selank Dosage Calculator
Selank is dosed in micrograms and is often given intranasally, but this calculator covers the injectable vial. Enter your vial, water, and dose to see the draw.
INPUT VALUES
Peptide vial size
10 mg
Total Selank in your vial
Bacteriostatic water
2 mL
Amount of BAC water added
Desired dose
250 mcg
Injectable Selank is commonly discussed at 250–500 mcg per dose.
RESULT · AUTO-CALCULATED
Draw to
units on a U-100 insulin syringe · 0.05 mL
- Concentration
- 5000 mcg/mL
- Volume per dose
- 0.05 mL
- mcg per unit
- 50 mcg
- Doses per vial
- 40
Educational only. Reconstitution math is provided to help you follow the instructions from your prescribing provider — it is not a dosing recommendation. Always use the dose your provider prescribed.
About Selank dosing
Selank is a synthetic analog of the immune peptide tuftsin, developed in Russia and studied for anxiolytic and nootropic effects without sedation. It is the calming half of G1's Zen X pen, paired with Semax.
From a 10 mg vial in 2 mL (5,000 mcg/mL), a 250 mcg dose is 0.05 mL — 5 units — and the vial holds 40 doses.
Your G1 provider sets the dose, route, and schedule. Intranasal Selank uses a different concentration and is not covered by this calculator.
Can Selank be taken intranasally?
Yes — nasal spray is the original and most common route, with doses in the 250–750 mcg range. This page covers the subcutaneous vial only; nasal solutions are prepared and dosed differently.
What is the common Selank dosing protocol?
Injectable protocols commonly discussed use 250–500 mcg once or twice daily, often in two-to-three-week courses. Your provider decides what applies to you.
How does Selank differ from Semax?
Both are Russian-developed neuropeptides, but Selank leans anxiolytic (calming, tuftsin-derived) while Semax leans stimulating and nootropic (ACTH-derived). The Zen X pen pairs them for balance.
AVAILABLE AT G1
Selank is prescribed through G1.
A free telehealth consultation with a licensed provider, a prescription written for you, and pharmaceutical-grade vials shipped cold-chain to your door.
RELATED CALCULATORS