Selank / Semax
“The Brainy Ones”
The cerebral pair with a mysterious past.
Last medically reviewed: June 2026
Selank / Semax's video intro is coming soon
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What I look like
The form and how it is used
Most often nasal sprays or drops, sometimes powder. They tend to travel as a duo in the nootropic world.
My story
Where I came from
Both were developed in Russia, where they have been used clinically for anxiety and cognition. Semax comes from a fragment of a stress hormone and Selank from an immune-related peptide. Neither is approved in the US or EU.
What I bring to the table
What people explore me for
- Explored for focus and memory
- Talked about for mood and anxiety support
- Grouped under the nootropic umbrella
My red flags
Side effects and cautions to know
- Very little Western clinical data
- Safety profile is not well characterized
- Quality of what is sold varies a lot
Where to find me
The honest version, not a shopping guide
Not approved in the US, so what circulates here comes through unregulated nootropic sellers. That makes a cautious provider conversation the smart move before considering them at all.