What Selank is
Selank is a synthetic peptide of seven amino acids, based on tuftsin, a fragment of an antibody protein involved in immune signaling. Like Semax, it was developed in Russia, where it is registered as a nasal drug for anxiety.
In the US it's marketed for calm focus and stress. Those uses haven't been tested to FDA standards.
Regulatory status in 2026
Selank is not approved in the US. FDA removed it from its Category 2 safety-concern list in 2024, and its compounding status is still under evaluation.
Selank is registered as a drug in Russia.
FDA removes Selank from Category 2 of its interim compounding list.
Not approved in the US and not on the final compounding list.
Regulatory status can change. Check the sources linked at the bottom of this page before relying on anything here.
Claims vs. what the research shows
Selank's human research is small and mostly from Russia.
Reduces anxiety.
Small Russian clinical studies report benefits. Independent randomized trials are lacking.
Animal or limited evidenceImproves memory and focus.
Mostly animal data.
Animal or limited evidenceNon-addictive alternative to anti-anxiety drugs.
Not established by head-to-head human trials.
Insufficient dataStorage and stability
Peptides break down with heat, light, moisture, and repeated freezing and thawing. Degraded product is one common reason two vials of the "same" peptide behave differently. These are general peptide handling practices. Your supplier's certificate of analysis or label takes priority. Nasal solutions should be handled per the product label.
Sealed powder (lyophilized)
- Refrigerate at 36 to 46°F (2 to 8°C) for routine storage.
- Freezer is generally used for long-term storage.
- Keep in its original sealed vial, away from light.
- Let a cold vial reach room temperature before opening to limit condensation.
After reconstitution
- Keep refrigerated. Do not freeze.
- Protect from light. Clear glass lets it through.
- Opened multi-dose bacteriostatic water is typically discarded 28 days after first puncture.
- Log the mix date so you know the vial's age at a glance.
Light exposure is easy to overlook in a fridge door that opens dozens of times a day. VIALTIGHT is building stackable cases that block light from every side. See vialtight.com for updates.
Reconstitution math
Concentration is just the amount of peptide divided by the volume of water added. On a U-100 insulin syringe, 100 units equals 1 mL, so each unit is 0.01 mL. Enter what is on your vial label and what you added to see the concentration.
This shows concentration only. It is not a dosing recommendation. VialTracker runs this math for every vial you log and keeps it with the vial's history.
Safety flags
Product quality is unverified. Gray-market vials have been found underdosed, mislabeled, or contaminated. A certificate of analysis from the seller is not the same as independent testing.
Limited independent data. Most safety information comes from one country's research and regulatory system.
Nasal products vary. Concentration and preservatives in gray-market sprays are unverified.
FAQ
Is Selank the same as Semax?
No. Both are Russian nasal peptides, but Selank is marketed for anxiety and Semax for focus and brain recovery.
Is Selank legal in the US?
It isn't FDA-approved or on the final compounding list, so it cannot be legally marketed for human use.
Does VialTracker tell me what to take?
No. VialTracker organizes the information you enter and runs the math. It does not recommend doses, products, or protocols.