NA-Selank Amidate vs Semax
Moderate Research vs Well Studied
synergistic Often combined for comprehensive cognitive enhancement and mood support.
Molecular Data
NA-Selank Amidate Semax
Weight 864 Da 813.93 Da
Half-life 4-6 hours 0.5-2 hours
Chain 7 amino acids + modifications 7 amino acids
Type Modified heptapeptide ACTH(4-10) synthetic analog
Key Benefits
NA-Selank Amidate
01 Pronounced anxiolytic effects without sedation
02 Enhanced blood-brain barrier penetration (vs standard Selank)
03 Improved metabolic stability and longer half-life
04 Nootropic effects with enhanced memory and learning
05 Increased BDNF levels for neuroplasticity
06 No dependency or withdrawal effects
07 Immune-modulating properties
08 Effects persist after treatment cessation
Semax
01 Rapid brain delivery via intranasal route
02 Rapidly increases BDNF levels
03 Extensive clinical research in Russia
04 Easy self-administration
05 Modulates dopamine and serotonin systems
06 Neuroprotective effects
Dosing Protocols
NA-Selank Amidate
200-500mcg per administration / 1-2x daily for 14-20 days
Alternative delivery 250-500 mcg 1-2x daily
Semax
300-600mcg per dose (up to 1000mcg for intensive use) / 1-2x daily (morning recommended for cognitive boost)
Research protocol 500-750mcg 1x daily
Intensive protocol 750-1000mcg 1-2x daily
Side Effects
NA-Selank Amidate
Generally well-tolerated
Mild nasal irritation (intranasal)
Fatigue (rare)
Semax
Mild nasal discomfort (nasal route)
Possible nasal sensation upon administration
Contraindications
Pregnancy or breastfeeding
Known hypersensitivity to Selank or tuftsin
Severe psychiatric conditions (consult professional)
Pregnancy or breastfeeding
Known peptide allergies
Do not exceed 4-week continuous use without medical supervision
Research Evidence
NA-Selank Amidate Semax
Status Moderate Research Well Studied
References 4 studies 4 studies
Latest — 2021
FDA Approved No No
This comparison is for educational and research purposes only. Consult a healthcare professional before use.