Selank dosage, side effects and what to expect

01The short version

Typical intranasal Selank doses are 0.25 to 1 mg, one to three times a day, with most people settling on one or two sprays per nostril. Side effects in the published trials were rare and mild, mostly nasal irritation and, for a few people, tiredness. There is no documented withdrawal, no dependence signal and no interaction with caffeine. Details, and the exceptions, below.

02Dosage

The clinical work used 0.25 to 1 mg intranasally. A metered spray such as CALM-02 delivers a fixed amount per press, so the dose is a spray count: one spray per nostril is the starting point, and a second round two to three hours later if needed. Do not exceed four sprays in 24 hours without a reason.

Timing depends on why you are using it. For a stressful day, morning. For unwinding, late afternoon or early evening; it does not interfere with sleep and some people find it helps them get to sleep by quietening the replaying-the-day loop. It can be used the same day as Semax; the usual pattern is Semax morning, Selank later.

03A simple dosing chart

Vial users calculating their own concentration: the maths is the same as for Semax and explained in vials vs metered spray.

04Side effects

Across the Russian trials the reported adverse effects were infrequent and mild: nasal irritation or dryness, occasional headache, and in a minority a feeling of being too relaxed or sleepy, particularly at higher doses. No cardiovascular effects, no cognitive dulling and no sedation at clinical doses were reported. Because Selank is a peptide that is broken down into amino acids, it does not accumulate.

What has not been studied: long-term daily use over years, use in pregnancy or breastfeeding, and use under 18. Anyone in those groups should not use it. Anyone on prescribed psychiatric medication, including SSRIs, should speak to their prescriber first; there is no documented interaction, but there is also no study, and Selank's effect on serotonin means caution is sensible.

05Withdrawal and tolerance

"Selank withdrawal" is a common search and the answer is reassuring: no withdrawal syndrome has been reported in the literature, and the trials specifically noted its absence compared with benzodiazepines. Stopping it means the effect stops, nothing more. Tolerance has not been documented at clinical doses; some users cycle five days on, two off, as a precaution.

06When to stop and speak to someone

If low mood, persistent anxiety or panic are the reason you are looking at Selank, that is a conversation for a GP, not a product page. Selank is a supplement for the ordinary stress of a demanding life, not a treatment for a condition, and we will not pretend otherwise.