Source comparison
Selank vs Semax
Both are Russian-developed nootropic peptides from the same laboratory, but they target different primary goals. Primary effect Anxiolytic (anti-anxiety) Nootropic (pro-focus) Derived from Tuftsin (immunoglobulin G fragment) ACTH(4-10) fragment Key mechanism G
This comparison does not assign a generated winner or score.
- Both are Russian-developed nootropic peptides from the same laboratory, but they target different primary goals.
- Primary effect
- Anxiolytic (anti-anxiety)
- Nootropic (pro-focus)
- Derived from
- Tuftsin (immunoglobulin G fragment)
- ACTH(4-10) fragment
- Key mechanism
- GABA modulation, enkephalin stabilization
- BDNF/NGF upregulation, dopamine modulation
- Best for
- Anxiety, stress resilience, calm focus
- Focus, memory, motivation, learning
- Russian indication
- GAD, neurasthenia
- Stroke recovery, cognitive decline
- Typical dose
- 250-500 mcg/day nasal
- 300-600 mcg/day nasal
- 5-10 minutes
- Duration
- 3-6 hours
- 3-4 hours
- Immune effects
- Strong immunomodulatory
- Minimal
- Stimulating?
- Mildly calming
- Mildly stimulating
- Choosing between them: If your primary concern is anxiety or stress, choose Selank. If your primary concern is focus and cognitive performance, choose Semax. For both, stack them together (see Protocol 3 above). Verify combinations with our interaction checker.