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NA-Selank Amidate

Moderate research

N-Acetyl Selank Amidate | Enhanced Anxiolytic Nootropic

CognitiveLongevityImmune

NA-Selank Amidate is an enhanced version of Selank, the anxiolytic nootropic peptide developed at Russia's Institute of Molecular Genetics.

Molecular & research data

Sequence
Ac-Thr-Lys-Pro-Arg-Pro-Gly-Pro-NH2
Molecular weight
864 Da
Half-life
4-6 hours
Primary targets
bdnf, dopamine-receptor, gaba, serotonin-receptor
Routes (research)
Nasal, Injectable
Storage
Refrigerate at 2-8°C

Overview

NA-Selank Amidate is an enhanced version of Selank, the anxiolytic nootropic peptide developed at Russia’s Institute of Molecular Genetics. The N-acetyl group improves blood-brain barrier penetration and creates more stable metabolites, while the C-terminal amidation further enhances metabolic stability and receptor binding. Unlike benzodiazepines, it provides anxiety relief without sedation, dependency, or cognitive impairment.

Mechanism of action

NA-Selank Amidate modulates multiple neurotransmitter systems including GABA, dopamine, and serotonin, while regulating brain-derived neurotrophic factor (BDNF). It allosterically modulates GABAA receptors without causing the sedation or dependency of benzodiazepines. The peptide activates serotonin metabolism in the hypothalamus and brainstem, and increases BDNF levels to promote neuronal growth and differentiation.

Key research findings

  • Pronounced anxiolytic effects without sedation
  • Enhanced blood-brain barrier penetration (vs standard Selank)
  • Improved metabolic stability and longer half-life
  • Nootropic effects with enhanced memory and learning
  • Increased BDNF levels for neuroplasticity
  • No dependency or withdrawal effects
  • Immune-modulating properties
  • Effects persist after treatment cessation

Research applications

Anxiety & Mood

  • Generalized Anxiety — Standard Selank approved in Russia for GAD; NA-Selank Amidate offers enhanced delivery.
  • Stress Response — Modulates stress response through GABA and serotonin systems without sedation.
  • Mood Enhancement — Improves mood through serotonin metabolism activation.

Cognitive Enhancement

  • Memory Enhancement — Increases memory trace stability for up to 30 days in animal studies.
  • Learning — BDNF elevation supports learning and neuroplasticity.
  • Neuroprotection — BDNF increase reduces effects of neurological injury.

Immune Support

  • Immune Modulation — Based on tuftsin structure, retains immunomodulatory properties.

NA-Selank Amidate FAQ

How is NA-Selank Amidate different from standard Selank?+

NA-Selank Amidate has two key modifications: N-terminal acetylation and C-terminal amidation. These changes enhance blood-brain barrier penetration, create more stable metabolites, and extend the half-life compared to standard Selank. The result is superior anxiolytic and cognitive effects with potentially longer duration of action.

Can I use NA-Selank Amidate without taking breaks between cycles?+

No. The file recommends limiting cycles to 2-3 weeks with breaks between them to prevent potential GABAergic desensitization. Continuous use without breaks may reduce effectiveness over time, similar to tolerance that develops with benzodiazepines, though NA-Selank Amidate has no reported dependency.

Does intranasal NA-Selank Amidate work faster than injection?+

Yes. The intranasal route provides direct access to the brain and has faster onset (15-30 minutes) compared to subcutaneous injection. However, both routes are effective—the choice depends on convenience and bioavailability preferences.

Will NA-Selank Amidate interfere with my anxiety medication?+

That depends on your medication. NA-Selank Amidate works through GABA and serotonin systems. If you're on benzodiazepines or SSRIs, consult your healthcare provider before combining, as the effects may be additive. The peptide is designed to work without causing the sedation or dependence of benzodiazepines, making it potentially safer when used under guidance.

References

  1. [1]Selank Administration Affects Expression of Genes in GABAergic NeurotransmissionFrontiers in Pharmacology
  2. [2]Selank Clinical Trial in Anxiety DisordersZhurnal Nevrologii i Psikhiatrii
  3. [3]Selank and Serotonin MetabolismBulletin of Experimental Biology and Medicine
  4. [4]Selank and BDNF ExpressionRegulatory Peptides

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Last reviewed: 2026-06-26. Information is provided for research and educational reference only — see our disclaimer.