Nootropic
Selank
Approved in Russia; not Canada or USSmall human studies
A lab-made version of tuftsin, a natural immune peptide, developed in Russia, where it's approved as a nasal spray for anxiety. Russian studies report calming effects without sedation, but there are few independent or Western trials.
- Canada
- Not authorized; seized by Health Canada in 2025
- United States
- Not approved
Download profile Opens in Vialchemy on your iPhone, where it's added to your Library as your own.
Not medical advice — talk to your doctor before making medical decisions.
At a glance
- Class
- Nootropic / anxiolytic
- Mechanism
- Proposed: affects GABA signalling and BDNF
- Evidence
- Small human trials (mostly Russian)
- Canada
- Not authorized
- Us
- Not approved
- Half Life
- Minutes
- Routes
- Nasal
- Common Side Effects
- Nasal irritation, tiredness
- Key Cautions
- Limited independent data
What the research says
Is there human evidence?
Some, mainly small Russian trials in anxiety disorders. Few independent or Western studies.
With anxiety or sleep medicines or alcohol?
Not studied together. Effects on calm and drowsiness could add up.
With Semax?
Often paired (Semax for focus, Selank for calm). No combination trials.
Get medical care if
- Thoughts of harming yourself, or anxiety or mood that suddenly gets worse
- Hives, swelling of the face or throat, or trouble breathing (call 911)
Buying and quality
- Not authorized by Health Canada. Products sold online as "research use only" are illegal to sell for human use in Canada, and the label doesn't change that.
- Health Canada warns these products may contain too much, too little or none of the peptide, plus contaminants like endotoxins, solvents, heavy metals or bacteria.
- A certificate of analysis (COA) from the seller isn't independent proof. A 98% purity result still leaves 2% unidentified.
- If you use it anyway: one clean needle per injection, sterile technique, label and date every vial, and stop if a site gets hot, red and spreading.
Dose calculator
Doses are set with your prescriber. This converts a dose you already have into what to draw; it doesn't recommend one. Check every number against your syringe and your vial's label.
Doses left in the vial
A blend vial
Not medical advice — talk to your doctor before making medical decisions.
Sources
Researched 2026-10-27. Trial results and approval status change.
General education, not medical advice. Nothing here is a dose recommendation. Doses, schedules and changes are set with a prescriber.