Semax vs Selank
§ 01 — Attributes
Summary
A Russian-developed short neuropeptide derived from ACTH, used clinically in Russia for stroke and cognitive deficits. Popular among biohackers for focus and stress resilience.
A Russian-developed heptapeptide that acts as an anxiolytic nootropic. Frequently stacked with Semax for balanced focus and calm.
Mechanism
Semax modulates dopamine and serotonin systems, upregulates BDNF, and has neuroprotective effects. Administered intranasally for direct CNS penetration.
Selank modulates GABA-ergic and serotonergic systems and upregulates BDNF. Unlike benzodiazepines it doesn't cause sedation or dependence.
Typical dose
250–1000 mcg intranasal, 1–2x per day
250–500 mcg intranasal, 1–3x per day
Half-life
Short (hours) — but effects compound over 2–4 weeks
Short — effects compound over 1–2 weeks
Administration
Intranasal
Intranasal
Regulatory status
research-only
research-only
Cheapest in stock
£16 · £3.2/mg via Peptides UK
Not yet listed
Offers tracked
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