Focus & mood · Sleep
Selank, simplified.
Also called Tuftsin analog
Human studiesA calming nasal spray peptide from Russia studied for anxiety without drowsiness.
- Size
- 7 amino acids
- How it is taken
- Nasal spray
- Status
- Research compound (Rx in Russia)
- Available sizes
- Vials: 5 mg, 10 mg, 20 mg
What is it?
Selank is based on tuftsin, a small immune peptide your body makes. It seems to affect calming brain chemicals like GABA.
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What studies show
- In peopleSmall Russian trials in people with anxiety reported less anxiety, similar to a common anti-anxiety drug but without sedation.
What we don’t know yet
- Independent trials outside Russia are lacking.
Side effects and cautions
- Generally reported as well tolerated. Nasal irritation is possible.
Is it legal?
Not FDA-approved. Included in the 2026 HHS compounding plan.
Dosage & schedule evidence
How to read published schedules
Third-party protocols are not established clinical dosing standards. Safe human dose, frequency, and duration may be unknown.
| Measurement | Meaning |
|---|---|
| 1 mg | 1,000 mcg (mass) |
| 100 U-100 units | 1 mL (volume, not dose) |
See third-party published protocols ↗ for research context. North Star does not validate these schedules.
Consult your doctor before considering any peptide for personal use. Educational only, not administration guidance.
Common questions
What is Selank?
A calming nasal spray peptide from Russia studied for anxiety without drowsiness. Selank is based on tuftsin, a small immune peptide your body makes. It seems to affect calming brain chemicals like GABA.
What does the research say about Selank?
Small Russian trials in people with anxiety reported less anxiety, similar to a common anti-anxiety drug but without sedation.
Is Selank FDA approved?
Not FDA-approved. Included in the 2026 HHS compounding plan.
What are the side effects of Selank?
Generally reported as well tolerated. Nasal irritation is possible.
Comes in these blends
- Selank + Semax (5/5 mg vial): Selank + Semax
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This page explains published research in plain language. It is not medical advice, a diagnosis, or a recommendation to take anything, and it does not give dosing. Most peptides here are not FDA-approved, and products sold online vary widely in purity. Rules around peptides are changing, so check the current status and talk with a licensed clinician before starting anything. Last reviewed 2026-10-19.