Cognitive ⏱ Half-life: Extended compared to standard Selank due to acetylation protection. Experimental

N-Acetyl Selank

N-Acetyl Selank Amidate

Updated March 15, 2026

Evidence at a Glance

Regulatory statusExperimental
Parent peptide Selank is prescription-approved in Russia for anxiety; the N-acetyl amidate variant itself is unapproved and sold only as a research chemical.
Human evidenceNone
Animal evidenceNone

N-Acetyl Selank is a chemically stabilized variant of Selank; the parent peptide has Russian regulatory approval for anxiety, but the modified variant itself has no independent clinical trials and no approval anywhere.

What the research does not support

  • The specific N-acetyl amidate variant has no clinical trials of its own; claims are extrapolated from parent Selank data.
  • It is not approved by the FDA or any Western regulator and is sold only as a research chemical.
  • Even parent Selank's Russian approval rests on studies not widely replicated internationally.
  • It is not proven to treat anxiety, depression, or cognitive decline under Western evidence standards.
Half-Life
Extended compared to standard Selank due to acetylation protection.
Mol. Weight
~793 g/mol

What is N-Acetyl Selank?

N-Acetyl Selank is the stability-enhanced version of the anxiolytic nootropic peptide Selank. The N-acetyl modification protects the peptide from rapid enzymatic breakdown, increasing both its potency and duration.

Research Applications

Same as Selank — anxiolytic research, cognitive enhancement, BDNF expression, and immunomodulation — with improved pharmacokinetic profile.

Dosage Information (Research Use)

Research protocols: 200-600 mcg/day subcutaneously or intranasally. May require lower doses than standard Selank due to enhanced bioavailability. Research use only.

Reconstitution & Handling

Standard BAC water reconstitution.

Half-Life & Pharmacokinetics

Extended compared to standard Selank due to acetylation protection.

Reported Observations in Literature

Same clean profile as standard Selank. No sedation, tolerance, or dependence reported.

Key Research References

  • See Selank references. N-Acetyl modification data available in peptide chemistry literature.

How N-Acetyl Selank Works

N-Acetyl Selank adds an acetyl group and C-terminal amide to standard Selank, providing enhanced resistance to enzymatic degradation. This increases bioavailability and extends duration of action. Same core mechanisms: GABA modulation, BDNF upregulation, enkephalinase inhibition.

Research Findings

Preferred by many researchers over standard Selank due to improved stability and potentially stronger effects at equivalent doses.

Dosage & Administration

Research protocols: 200-600 mcg/day subcutaneously or intranasally. May require lower doses than standard Selank due to enhanced bioavailability. Research use only.

Safety & Side Effects

Same clean profile as standard Selank. No sedation, tolerance, or dependence reported.

Important: All safety information is derived from published research, primarily animal studies. No controlled human clinical trial data exists unless explicitly noted. This compound is sold for research purposes only.

Quick Facts

Sequence Ac-Thr-Lys-Pro-Arg-Pro-Gly-Pro-NH2
Molecular Weight ~793 g/mol
Half-Life Extended compared to standard Selank due to acetylation protection.
Available Sizes 5mg
Storage Lyophilized: -20°C. Reconstituted: 2-8°C.

Key Research References

  • See Selank references. N-Acetyl modification data available in peptide chemistry literature.

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