Selank Calculator
Dosage and reconstitution math for Selank. A synthetic heptapeptide analog of the endogenous immunomodulatory tetrapeptide tuftsin, studied for anxiety-related signaling.
Reconstitution calculator
Pre-filled with common defaults for Selank. Adjust any field to match your own vial.
Show the math
Enter values above to see the step-by-step math.
Free Illustrated Reconstitution Guide (PDF)
8-step visual walkthrough with photos and tips — from gathering supplies to drawing your dose. Educational only — not medical advice.
Selank dosage calculator
The Selank dosage calculator above converts a target dose into exact syringe units based on your vial size and how much bacteriostatic water you used to reconstitute it. Selank is commonly sold in 5 mg, 10 mg vials. The calculator supports both U-100 and U-40 insulin syringes and flags draws that are too large for the syringe barrel or too small to measure accurately. A synthetic heptapeptide analog of the endogenous immunomodulatory tetrapeptide tuftsin, studied for anxiety-related signaling. Enter your target dose in the calculator above to see the exact number of units to draw.
Selank dosage chart
| Sample dose | Concentration | Volume to draw | Units on U-100 |
|---|---|---|---|
| 190 mcg | 2.5 mg/mL | 0.076 mL | 7.6 |
| 380 mcg | 2.5 mg/mL | 0.152 mL | 15.2 |
| 750 mcg | 2.5 mg/mL | 0.3 mL | 30 |
| 1500 mcg | 2.5 mg/mL | 0.6 mL | 60 |
| 3000 mcg | 2.5 mg/mL | 1.2 mL | 120 |
Selank and Tuftsin analog peptides
Selank is a Synthetic analog of tuftsin. A synthetic heptapeptide analog of the endogenous immunomodulatory tetrapeptide tuftsin, studied for anxiety-related signaling.
See all Tuftsin analog peptides →
How to reconstitute Selank
Reconstituting Selank is the same unit-conversion process used for any lyophilized peptide:
- Draw your chosen volume of bacteriostatic water into a syringe.
- Inject the bacteriostatic water slowly down the side of the Selank vial — do not shoot it directly onto the powder.
- Swirl gently until the powder fully dissolves. Do not shake.
- Store the reconstituted vial refrigerated.
- To dose, calculate your draw volume: divide your target dose by the concentration (vial mg ÷ water mL = mg/mL). The calculator above does this automatically.
For Selank specifically, 5 mg, 10 mg vials are common. A typical reconstitution adds 2 mL of bacteriostatic water, producing a concentration of 5 mg/mL for the 10 mg vial size.
Selank half-life and storage
Published work reports a short plasma half-life for the unmodified Selank parent peptide. The extended stability of the molecule relative to tuftsin has been characterized in Russian literature.
Lyophilized Selank is typically stored refrigerated. Reconstituted solutions are commonly refrigerated and protected from light.
Common Selank dosing mistakes
- Confusing mg and mcg. 1 mg = 1,000 mcg. Always convert to the same unit before computing the draw.
- Using a U-40 syringe with U-100 math. Same printed mark, 2.5× the physical volume. Always check the syringe label.
- Not labeling the vial. Write the reconstitution date and concentration on the vial the moment you mix it.
- Under-diluting. If your draw is less than about 1 unit, the volume is too small to read accurately — add more bacteriostatic water next time.
Selank stacks
Selank is one of the ingredients in what is commonly referred to as the Nootropic stack . These are terms used in online peptide communities to describe specific combinations. See the stack pages for the full composition and calculator links.