Also called TP-7, Selank acetate, Thr-Lys-Pro-Arg-Pro-Gly-Pro
A Russian nasal spray for anxiety, said to calm you without making you sleepy.
Selank is a lab-made peptide, a short chain of seven protein building blocks, first made in Russia from a small piece of an immune protein. In Russia it's a registered medicine sold as 0.15% nasal drops for anxiety and nervous exhaustion. It isn't approved in the US, EU or UK.
No one knows exactly. Russian lab work suggests it helps the body's own calming chemicals last longer and touches some of the same brain systems that anti-anxiety pills like benzodiazepines work on. Most of this comes from animal and test-tube studies.
Some human studies
There are a few small human studies, nearly all from the Russian teams that made it. In one, 62 people with anxiety or nervous exhaustion got either Selank or an anti-anxiety pill (medazepam), and both eased anxiety about the same; a later study of 60 patients found a similar calming effect. These studies were small, not always well controlled, and haven't been repeated by independent teams, and claims about memory, focus and immunity rest mostly on animal studies.
Why: This follows the Russian (not FDA) package leaflet. Selank breaks down in the blood within minutes, so it's taken several times a day, and the nose is a fairly direct route to the brain.
Why: This range is widely shared online but untested in trials. It wears off fast, which is why people split it into more than one dose a day.
Start at the low end, and change one thing at a time. If you take medication or have a health condition, check with a doctor first.
Set up for a 5 mg vial. Change any number to match yours. New to this? Read how to mix a vial and mg vs mL vs units first.
Pick your dose and how long you'll run it. We'll count what you need.
Get help right away for swelling of the face or throat, trouble breathing, chest pain, or a spreading, hot, red injection site.
Powder: fridge or freezer. Once mixed, or once a nasal bottle is opened: fridge, use within about 2–4 weeks.
FDA: Not approved in the US. Selank acetate was on the FDA's list of compounding substances with safety concerns until the nomination was withdrawn; it is not an approved drug and cannot be legally sold for human use in the US.
Sport (WADA): Not named on the WADA list. Because it is approved in Russia it may not count as a 'non-approved substance' (S0), but this is unclear. Athletes should ask their anti-doping agency before using it.
No. It's a peptide, not a pill like Xanax or Valium. Early research suggests it touches some of the same calming systems, but it hasn't been compared with those drugs in large, independent trials.
Russian studies didn't report withdrawal or dependence, but they were small and short. Long-term use hasn't been studied.
That's how the Russian medicine is made. Your stomach destroys most peptides, and the nose lets some of it reach the blood and brain quickly.
Last checked 2026-10