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Last reviewed: May 4, 2026 · PeptiDex Editorial Team
© 2026 PeptiDex. All rights reserved.
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All Blends
🧠

Semax / Selank

"The Nootropic Duo"

SemaxSelankCognitive Enhancement

Benefits

Enhanced focus, anxiety reduction, neuroprotection, mental clarity

Why This Blend?

Semax provides potent cognitive enhancement and BDNF upregulation, while Selank delivers anxiolytic effects comparable to benzodiazepines without sedation. Together, they create calm focus — enhanced cognition without overstimulation.

Mechanism of Action

Semax upregulates BDNF and neurotrophin expression for cognitive enhancement. Selank modulates GABA/serotonin for anxiety reduction and stabilizes enkephalin levels. Complementary pathways: nootropic + anxiolytic.

Dosing Protocol

Typical Ratio: Semax 200-600mcg + Selank 250-500mcg per dose

Both administered as nasal sprays. Semax AM for focus, Selank AM/PM for anxiety. Can be used together or alternated. Cycle 4-12 weeks.

Expected Timeline

Week 1

Rapid cognitive enhancement from Semax; anxiety relief from Selank within days

Weeks 2–4

Stable nootropic effects; improved stress resilience; better sleep onset

Months 2–3

BDNF-mediated memory improvements; sustained anxiolytic effects

Long-term

Neuroprotective benefits; improved baseline cognition and mood stability

Supporting Studies

Semax cognitive improvement in humans

Human trial showing cognitive improvement including enhanced attention and memory.

moderate

Selank anxiolytic effects comparable to benzodiazepines

Significant anti-anxiety effects without sedation or dependence.

moderate

Safety Notes

Both approved in Russia. Excellent safety profiles. Non-addictive. Nasal spray administration.

📚 Individual Peptide Profiles

Semax →Selank →