Cognition stack (nasal)
Semax AM + Selank PM — spray (nasal), vials or cartridges
1.134.000 ₫
Vial-by-vial breakdown
A two-peptide nootropic protocol: Semax in the morning for daytime focus and dopaminergic support, Selank in the evening for calm and anxiolytic effect without sedation. The pairing covers both halves of the cognitive day — drive when you need it, downshift when you don't — without the tolerance or rebound profile of stimulant nootropics. Available in three delivery formats — nasal spray is the most popular: (a) Two nasal sprays — no injections, easy daily use (b) Two separate SubQ vials — ~100% more bioavailability than nasal (c) Two pre-loaded cartridges — convenient pen delivery Tier sizing is per peptide per bottle — e.g. the 20mg tier delivers 20mg Semax and 20mg Selank, one per bottle or vial.
Note: Semax and Selank support cognition in different ways. Semax is used to enhance cognitive function, including memory, focus, and learning capacity, and is best taken in the morning. Selank works by modulating key neurotransmitter systems — GABA, serotonin, and dopamine — to promote emotional stability and mental clarity, and is best taken shortly before bed. For this reason they are supplied separately.
Dosage
Semax spray (AM): 1-2 sprays per nostril (~200µg each) Selank spray (PM): 1-2 sprays per nostril (~200µg each) Vial alt: Semax 0.2mg SubQ AM, Selank 0.2mg SubQ PM Cartridge alt: pre-loaded pens for 10mg tier only
Duration of effect
Effects felt for 6-24 hours per dose (plasma half-life: Plasma ~5-15 min · Brain & BDNF effects 6-24h)
See full half-life table →Key Features
- Two nasal sprays — no injection
- AM focus + PM calm split
- Also: separate vials or 2 cartridges
- Cold-chain delivery
Includes key details, half-life data, usage notes and research sources.
Usage Instructions
Can be administered nasally or subcutaneously. Daily or cyclical dosing. Best taken in the morning for optimal cognitive effects.
Research Highlights
- Backed by scientific research
- Manufactured to pharmaceutical standards
- Used in clinical research settings
- Established safety profile
Safety Information
- •Consult your healthcare provider before use
- •Not intended for pregnant or nursing women
- •Store properly according to instructions
- •Report any adverse effects to your healthcare provider
Source: European Pharmaceutical Journal, 2022
Clinical Research
Semax and Selank serve as effective correctors under stress-induced conditions, restoring immune function and neuro-balance while demonstrating significant anxiolytic and neuroprotective properties.
Read full studyAdditional Research
Source: Zozulia et al., Korsakov J Neurology & Psychiatry (2008)
Heptapeptide Selank produced anxiolytic effects comparable to benzodiazepines in a 62-patient human trial of generalized anxiety disorder — without sedation or dependence — supporting its use alongside Semax in this combined daytime/evening stack.
Read full study