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Cognitive / Nootropic

Selank Protocol

Updated 3w ago 4 min read 312+ helpful Calculator
Beginner setup

Vial sizes vary by vendor. Smaller bottles are usually 3 mL; larger bottles are often 10 mL. Match the label on the vial you actually bought, then use the calculator below if you need to adjust.

Vial strength 5 mg
Bottle format often 3 mL
BAC water 3 mL
Concentration 1.67 mg/mL

Overview

Selank is a synthetic tuftsin-based peptide with anxiolytic and mild nootropic effects. Human studies used intranasal dosing; the common research route is subcutaneous injection, which is what this calculator is set up for.

Preparation

Reconstitute a 5 mg vial with 3 mL of bacteriostatic water (BAC) for a ~1.67 mg/mL concentration. Refrigerate after mixing. (Intranasal protocols reconstitute to a 0.5–1 mg/mL spray instead.)

VialBACConcentration
5 mg3 mL1.67 mg/mL

Protocol

PeriodDoseUnits (@ 1.67 mg/mL)Frequency
Weeks 1–2500 mcg (0.5 mg)30 units (0.30 mL)1x/day
Weeks 3–4750 mcg (0.75 mg)45 units (0.45 mL)1x/day
Weeks 5–81,000 mcg (1 mg)60 units (1.00 mL)1x/day

Cycle

4–8 week cycles. Morning dosing keeps the anxiolytic effect over the day; effects build over the first week or two.

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Dosing Calculator

5 mg + 3 mL · suggested 500 mcg
5 mg vial · 3 mL BAC
102030405060708090100
300.30 mL
Concentration1.67 mg/mL
Selected dose0.5 mg (500 mcg) = 30 units
1 unit = 0.01 mL on a U-100 syringe. Doses round to the nearest unit.