Selank
Selank is a synthetic peptide derived from the naturally occurring immunomodulatory peptide tuftsin. Developed in Russia for anxiety and cognitive enhancement.
Mechanism of Action
Modulates the expression of brain-derived neurotrophic factor (BDNF) and affects serotonin and norepinephrine systems. Has immunomodulatory and anxiolytic properties.
Dosage Overview
Dose Range
300 mcg – 900 mcg
Route
intranasal
Frequency
2x daily
Cycle Length
2–4 weeks
Reconstitution
Typical Dosage (Research)
Intranasal administration: 250-500mcg 2-3 times daily. Subcutaneous: 250-500mcg daily.
Most commonly administered intranasally for cognitive effects. Can also be injected subcutaneously.
Considerations for Men & Women
Women: Anxiolytic peptide with immunomodulatory properties. No established sex-specific differences in cognitive or anxiolytic effects. No known interactions with hormonal contraceptives or HRT.
Men: Same anxiolytic and nootropic profile. Intranasal administration provides good bioavailability for both sexes.
Individual responses vary. These notes reflect general trends from research literature and are not medical advice.
Quick Calculator
Quick Calculator
Concentration: 5,000 mcg/ml
Volume to inject: 0.06 ml
Syringe units (U-100): 6.0 units
Pre-filled with Selank defaults. Adjust values as needed.
Side Effects & Risks
Generally well-tolerated. Some users report mild fatigue or nasal irritation with intranasal use.
Limited Western clinical data. Primarily studied in Russia. Long-term effects not well documented.
Where to Buy Selank
All Vendor Details →US-based vendor with third-party HPLC testing and published COAs. One of the few reputable sources we've verified for research-grade peptides.
Swiss Chems
Finnrick CBiotech Peptides
US-based vendor with a large catalog of single peptides, blends, and topicals. Claims 99% purity and US synthesis. No third-party COA documentation publicly available. Not currently rated by Finnrick.
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Finnrick grades are based on independent HPLC lab testing. Learn more · Finnrick is a commercial service — ratings are third-party, not independent.
Who Uses Selank
Those seeking anxiety relief, cognitive enhancement, and immune system support.
Frequently Asked Questions
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