Not medical advice. Talk to your provider before using any peptide.
Full disclaimerPeptide Schedule Research TeamReviewed Apr 20268 Citations
Selank7 residuesTKPRPGPEach bubble = one amino acid. Size = residue mass. Color = chemical class.Selank is a tuftsin-based anxiolytic peptide backed by a 192-patient GAD trial showing benzodiazepine-comparable results. It reduces anxiety without sedation, boosts BDNF, and pairs well with Semax. All clinical data is from Russian institutions. No Western trials have been run.
250mcg · Daily
Summary: Add 2mL BAC water to your 5mg vial. Draw to 10.0 units on a U-100 syringe for a 250mcg dose. This vial will last 20 doses.
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| Level | Dose / Injection | Frequency |
|---|---|---|
| Beginner | 250mcg | Daily |
| Moderate | 500mcg | Daily |
| Aggressive | 750mcg | Daily |
A 5 mg vial reconstituted with 2 mL of bacteriostatic water gives you 2,500 mcg/mL. At 250 mcg per dose, that's 0.10 mL, which is 10 units on a U-100 insulin syringe. At 500 mcg, you're pulling to the 20-unit mark. One vial gives you 10 doses at 500 mcg or 20 doses at 250 mcg. The thing most beginners miss with intranasal Selank: sniffing too hard drains the solution to your throat and bypasses mucosal absorption entirely. Tilt your head slightly forward, administer to one nostril, and give the gentlest sniff possible. Alternate nostrils per dose. Store reconstituted Selank at 2 to 8 degrees C and use within 28 days. Never freeze after reconstitution; ice crystals break the peptide apart. Lyophilized powder stores indefinitely at minus 20 degrees C before you add water. If a vial doesn't seem to work, check the COA purity (minimum 95% by HPLC) before assuming the peptide isn't for you. Vendor quality variation is the biggest variable in this space.
Dosing based on Community dosing consensus from peptide research communities — 14 published references.View all sources →
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Pricing updated 2026-04-09
Prices are estimates and vary by source, location, and prescription status.Full pricing breakdown →
Disclaimer: This curve is a simplified first-order exponential decay model. Actual pharmacokinetics vary based on injection site, individual metabolism, body composition, and other factors. Half-life values are approximate and based on available preclinical and clinical literature. Many research peptides lack formal human pharmacokinetic studies. This is for educational purposes only — not medical advice.
Selank is a tuftsin-based anxiolytic peptide backed by a 192-patient GAD trial showing benzodiazepine-comparable results. It reduces anxiety without sedation, boosts BDNF, and pairs well with Semax. All clinical data is from Russian institutions. No Western trials have been run.
