Compare
Selank vs Semax
The honest difference
Both are Russian nasal-spray medicines backed by small, mostly Russian studies. Selank is taken for anxiety, Semax for focus and memory.
Peptide
Selank
Grade C: early / limited human data
Why people buy it
People take it as a nasal spray for anxiety and stress. Some also hope it helps focus and mood.
Bottom line
More real human data than most peptides, but small and only from Russia. Not proven.
- UK status
- Not licensed by the MHRA. Selank has no UK marketing authorisation and is not an approved or prescribable medicine in the UK.
- Sport / WADA
- Not listed on the WADA Prohibited List as a named substance and not a recognised performance-enhancing agent. Athletes should still exercise caution given its unlicensed status.
Peptide
Semax
Grade C: early / limited human data
Why people buy it
People take it as a nasal spray to sharpen focus and memory. In Russia, doctors prescribe it after strokes and for concentration problems.
Bottom line
A real Russian medicine with an interesting story, but weak proof. Not shown to help healthy brains.
- UK status
- Not a licensed medicine in the UK. Semax has never been evaluated or authorised by the MHRA and holds no UK marketing authorisation.
Grades are about evidence in humans, not about whether something is right for you. Nothing here is dosing advice. Talk to a qualified clinician before any health decision.
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