Cognitive

Semax vs Selank

A cognitive-peptide comparison between two Russian-developed compounds with nootropic and anxiolytic public interest.

Semax

Cognitive

Cognitive enhancement, neuroprotection, stroke recovery

Cognitive

Anxiety reduction, cognitive enhancement, immune modulation

Signal	Semax	Selank
Research angle	Cognitive enhancement, neuroprotection, stroke-recovery framing	Anxiety, stress, cognition, and immune-modulation framing
Public conversation	Focus and productivity anecdotes	Anxiety reduction and subtle-effect anecdotes

Semax is more focus/neuroprotection coded, while Selank is more anxiety/stress coded in public discussion.

International approval/history does not translate cleanly into US approval or access.