Buy Selank in the USA

Every Selank lot we ship is validated by Janoshik Analytical via HPLC and mass spectrometry. The corresponding Certificate of Analysis is referenced from the product page so researchers can verify the exact batch they received. We do not ship without an in-hand COA.

Orders placed before 2 PM ET ship the same day from our New York research-supply facility. Free shipping is included on orders over $200, and every order includes batch-specific COA documentation.

Selank is a synthetic heptapeptide analog of the naturally occurring immune peptide tuftsin, developed by the Russian Academy of Sciences. It has been extensively studied for its ability to reduce anxiety, sharpen cognition, and modulate the immune system — without the sedation, tolerance, or withdrawal seen with traditional benzodiazepines.

Clinical trials with 62+ patients showed anxiolytic effects comparable to medazepam with additional benefits: BDNF upregulation, cognitive enhancement, immune modulation (CD4+/CD8+ normalization), enhanced NK cell activity, and neuroprotective effects. A staple of anxiety and cognitive-performance research. For research use only. Not for human or veterinary consumption.

Researchers should refer to peer-reviewed publications for primary sources on this compound. Selank is sold strictly for laboratory research use and is not intended for human or veterinary use.

Lyophilized Selank stores at −20 °C protected from light; reconstituted solution refrigerates at 2–8 °C per laboratory SOP. Reference your lot's COA for compound-specific guidance and see our [Preparation Guide](/learn/preparation-guide) for laboratory handling instructions.

BioInfinity ships Selank same-day from New York for all orders placed before 2 PM ET, Monday through Friday. We use insulated cold-shipping where indicated. International researchers should review our /shipping page for region-specific guidance.