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Cognitive & Nootropic
Immune
Research Chemical

N-Acetyl Selank Amidate

Also known as: N-Acetyl Selank Amidate, NASA-Selank, NA-Selank-Amidate

N-Acetyl Selank Amidate is a stabilized analog of the anxiolytic peptide Selank, modified for improved durability and intranasal delivery. It is studied for anxiety reduction and cognitive support.

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Mechanism of Action

N-Acetyl Selank Amidate is a Tuftsin-derived heptapeptide analog in which N-terminal acetylation and C-terminal amidation increase resistance to enzymatic degradation. It modulates the GABAergic and serotonergic systems and influences the expression and metabolism of enkephalins, producing anxiolytic effects without sedation or dependence. Selank analogs also raise brain-derived neurotrophic factor (BDNF) and modulate the balance of pro- and anti-inflammatory cytokines, linking its nootropic and immune-modulating actions. The stabilizing modifications support its use via intranasal administration for central nervous system access.

Half-life
Extended versus native Selank due to acetylation and amidation, on the order of hours
Administration Routes
intranasal
Research Status
Research Chemical

Reported Benefits

  • Reduces anxiety without sedation in study models
  • Non-addictive anxiolytic profile
  • May improve attention, memory, and mental clarity
  • Modulates cytokine balance with immune-supportive effects
  • Influences BDNF and neuroplasticity pathways
  • Convenient intranasal delivery

Potential Side Effects

  • Nasal irritation or congestion with intranasal use
  • Mild fatigue or drowsiness in some users
  • Transient headache
  • Unknown long-term safety in humans outside Russian research

Common Dosing

For research use only and not personal medical advice: protocols commonly reference 250-500 mcg per intranasal administration one or more times daily across study designs. Not approved for human use in most jurisdictions.

The dosing information above is aggregated from research literature and anecdotal community reports for educational purposes only. It is not a recommendation, prescription, or medical advice. Peptides are sold as research chemicals only and are not intended for human use.

Contraindications

  • Pregnancy or breastfeeding
  • Known hypersensitivity to the peptide
  • Concurrent strong sedatives without clinician oversight
  • [Efficacy and possible mechanisms of action of a new peptide anxiolytic selank in the therapy of generalized anxiety disorders and neurasthenia]

    2008

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  • [A comparison of the anxiolytic effect and tolerability of selank and phenazepam in the treatment of anxiety disorders]

    2014

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  • Peptide-based Anxiolytics: The Molecular Aspects of Heptapeptide Selank Biological Activity

    2018

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  • The temporary dynamics of inflammation-related genes expression under tuftsin analog Selank action

    2014

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The acetyl and amide modifications make the molecule more resistant to enzymatic breakdown, giving it a longer duration of action and better suitability for intranasal delivery than unmodified Selank.

Research describes Selank analogs as anxiolytic without the sedation, tolerance, or dependence associated with benzodiazepines, which is a major reason it is studied as an alternative.

Intranasal delivery provides direct access to the central nervous system and bypasses the rapid degradation peptides face in the digestive tract.

PeptideChat is for educational and research purposes only. Nothing on this site constitutes medical advice. Peptides are sold as research chemicals only and are not intended for human use. These statements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease. PeptideChat is an independent educational resource — not a pharmacy, compounding, or 503A/503B outsourcing facility — and does not sell products or provide medical advice.