Cognitive
Selank
per administration
It has been used in people, but no trial has settled how much or how often.
Licensed as a medicine in Russia.
The human evidence for Selank used the intranasal route. The draw worked out here assumes a subcutaneous injection, so the amount is not a direct read-across.
Quick start
Selank at a glance — the figures, plus how it's commonly run. Reference only, not medical advice.
- Typical dose
- 250–500 mcg per administration
- How often
- Every day
- Where
- Intranasal spray
- Time to steady level
- ~3 hours — about five half-lives
- Storage
- Dry vial kept cold and dark; a mixed vial in the fridge at 2–8 °C. Details
A research and community reference, not medical advice. Figures are descriptive, vary between sources, and are not a recommendation for use.
Key properties
Molecular reference data.
- Formula
- C33H57N11O9
- Mol. weight
- 751.9 Da
- CAS
- 129954-34-3
- PubChem CID
- 11765600
Sequence (one-letter)
TKPRPGP
External references
Work out your draw
These numbers are a starting point — change any of them.
Vial label
Copy this into your label printer.
Published research contexts for Selank describe 250–500 mcg per administration. Descriptive only, not a recommendation.
Degrades fast in plasma; estimates are rough.
Used intranasally where it is licensed; no Western dose-ranging trial fixes an injected schedule, so no schedule table is shown.
What it can be combined with
How Selank is commonly discussed alongside other peptides and drugs.
Educational reference on commonly-discussed combinations, not medical advice. Combining compounds can change how each behaves — read this as a prompt to research, not a clearance.
- SemaxA commonly-paired nootropic combination from the same body of research; no reported interaction.Commonly combined
Modelled level — every day
1× is the peak after a single dose.
- Steady-state peak
- 1.00× single dose
- Time to steady state
- 3hours
- Administrations
- 7/ week
Read off the modelled curve, not an even-interval formula
About five half-lives
Where these numbers come from
- Russian Selank anxiolytic literaturePreclinical and small clinical studies, largely Russian-language.