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Research chemical Published: limited Established use

Selank: dosing, reconstitution and evidence

A synthetic tuftsin analog, also Russian-developed, used as an anxiolytic. Modulates GABA and serotonin without the sedation or dependence associated with benzodiazepines.

Also known as Tuftsin analog, TP-7

Educational research reference Cognitive & Sleep
Quick reference. Everything you need to run Selank — dosing, frequency, reconstitution math for the vial sizes people actually buy, and what it stacks with. For anything specific to your situation, ask the Guru.

Selank quick start

Route
SubQ, or intranasal
Typical dose
250–500 mcg
Frequency
1–2× daily
Half-life
Short — minutes in plasma.
Cycle
2–4 week courses.
Vial sizes sold
10mg or 5mg
These are the numbers people actually run, drawn from the published record and from what the community has settled on over time. Educational reference, not medical advice — a starting point to work from, and one you can adjust as you learn how you respond.

How to run it

How often
1–2× daily
Cycle length
2–4 week courses.
Half-life
Short — minutes in plasma.
Route
SubQ, or intranasal
Consistency matters more than perfect timing. Pick a slot in your day you will actually keep, and let DoseIQ handle the rest.

What people actually run

The anxiolytic half of the Semax/Selank pair. Steady, long-running community use.

This is accumulated community practice — years of real-world use across a large number of people, converging on numbers that work. It is not a controlled trial, and for most compounds here no such trial exists or is ever likely to. That makes this the most reliable dosing signal available, and it is a good deal better than guessing.

What to expect

Most people tolerate Selank well. Here is what is worth knowing going in, so nothing catches you by surprise.

Same evidence caveats as Semax — approved in Russia, minimal Western trial data. No dependence reported, but long-term human data does not exist.

Reconstitution guide

Selank ships as a lyophilised powder and gets mixed with bacteriostatic water before use. How much water you add sets the concentration, which sets how many syringe units make up each dose. One unit on a U-100 syringe is 0.01 mL — the tables below do the arithmetic for the vial sizes you are most likely to be holding.

10mg vial most common

Water addedConcentration 250mcg500mcg
2mL (common) 5 mg/mL0.05 mL
5 units		0.10 mL
10 units
3mL 3.33 mg/mL0.07 mL
7.5 units		0.15 mL
15 units

5mg vial

Water addedConcentration 250mcg500mcg
2mL (common) 2.5 mg/mL0.10 mL
10 units		0.20 mL
20 units
3mL 1.67 mg/mL0.15 mL
15 units		0.30 mL
30 units
10 mg vial + 3 mL BAC water = 3,333 mcg/mL — a 300 mcg dose = 9 units on a U-100 syringe. 5 mg vial + 2.5 mL = 2 mg/mL — 300 mcg = 15 units.

Standard steps

  1. Inspect the vialConfirm the label and that the powder cake is intact. Do not use a cracked or compromised vial.
  2. Let it reach room temperatureSitting out for a few minutes reduces condensation inside the vial when the seal is broken.
  3. Disinfect both stoppersWipe the compound vial and the bacteriostatic water vial with a fresh alcohol swab and let them air-dry.
  4. Draw the bacteriostatic waterUse a sterile syringe to draw the volume you have chosen from the reconstitution table.
  5. Add the water down the vial wallInject slowly so it runs down the inside wall rather than spraying directly onto the powder. This limits foaming.
  6. Dissolve gentlySwirl or roll the vial between your hands until the cake dissolves. Never shake — agitation damages peptide bonds. The solution should end up clear.
  7. Label and refrigerateWrite the reconstitution date and concentration on the vial. Store at 2–8°C. Do not freeze.
Running a different vial size or water volume? The DoseIQ calculator works it out for any combination — mcg, mg or IU, on any syringe size.
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This page is an educational research reference and is not medical advice. Selank is not approved for human use in any jurisdiction. Dose figures reflect the published record and what the community has converged on — starting points to weigh, not instructions. Consult a qualified healthcare provider before starting any protocol.