N-Acetyl Semax Amidate
Research OnlyA chemically modified version of Semax with N-terminal acetylation and C-terminal amidation designed to enhance peptide stability. While parent Semax is approved in Russia for nootropic and neuroprotective applications, this specific modification has no independent clinical research.
NA-Semax · N-Acetyl Semax · Acetyl-Semax-Amidate · NASA-Semax
Preclinical evidence only
- Preclinical
- 100%
- Human research
- 0%
Based on 2 cited sources
Numeric assessment unreviewed
A historical numeric score is recorded but has not passed a current, compound-specific assessment review. No numeric score is displayed.
This is a limitation of the numeric assessment, not a measured absence of benefit. It does not re-review the separately recorded catalogue classification or establish efficacy or safety.
The proposed mechanisms of N-Acetyl Semax Amidate are extrapolated entirely from parent compound Semax research. No direct studies exist on this modified form.
How It Works (Simplified)
N-Acetyl Semax Amidate is proposed to work through the same pathways as Semax, with enhanced stability from terminal modifications:
Parent Semax increases BDNF, NGF, and GDNF expression. Whether modifications preserve this activity is unknown.
Semax affects dopamine and serotonin systems. The modified form’s receptor affinity has never been tested.
Semax activates TrkB receptors for neuroplasticity. Impact of terminal modifications on binding is uncharacterized.
N-acetylation blocks aminopeptidases, C-amidation blocks carboxypeptidases. Actual half-life extension not measured.
Key Research: Dolotov OV et al. (Russia, 2006) demonstrated BDNF and TrkB expression effects with Semax in the rat hippocampus. PMID:16996037
Important Limitations
- Zero published studies on N-Acetyl Semax Amidate specifically
- All mechanisms extrapolated from parent Semax research
- Whether modifications preserve biological activity is untested
- No human pharmacokinetic data exists for this compound
Reported positives
- Stronger and longer-lasting than standard semax reported
- Enhanced cognitive stimulation and focus
- Modified form provides improved bioavailability
- Nasal administration convenient
Reported negatives
- Overstimulation and anxiety at higher amounts
- More expensive than standard semax
- Hair loss concerns carried over from semax reports
- Limited supplier options
“Considered the potent version of semax. Popular in nootropic stacks.”
Self-reported, unverified accounts — not clinical evidence and no substitute for the cited research. Anecdotes are prone to selection bias and placebo effects.
No human data available. Based on parent Semax pharmacology: Acute cognitive effects may be noticed. Russian Semax studies suggest rapid onset of action. Whether modifications alter timeline is unknown.
PMID:16996037Extrapolated from Semax: Neurotrophic factor expression changes may develop. Parent compound shows BDNF modulation in animal models within this timeframe. No data specific to NA-Semax-Amidate.
PMID:17353092Based on general nootropic peptide research: Neuroplasticity effects may accumulate with continued use. No long-term studies exist for this modified compound.
PMID:15088389Completely unknown. No studies have evaluated extended use of N-Acetyl Semax Amidate. Long-term safety and efficacy data do not exist.
Research-based observations
This timeline reflects observations from published clinical and preclinical studies. Individual responses may vary significantly. This is not a guarantee of effects or a dosing schedule. Consult qualified healthcare providers for personalized guidance.
Semax
SynergisticParent compound with identical core sequence. NA-Semax-Amidate is designed to extend duration of action through terminal modifications. No studies comparing direct combination.
Na-Selank-Amidate
CompatibleBoth are modified Russian nootropic peptides with different mechanisms (Semax: neurotrophic focus vs Selank: anxiolytic focus). Commonly discussed together but no interaction studies exist.
Selank
CompatibleDifferent mechanism profiles. Selank focuses on anxiolytic effects while Semax derivatives target cognitive enhancement. No known contraindications.
Research Note: Interaction data is based on published literature, mechanistic understanding, and theoretical considerations. Most peptide combinations lack direct clinical study. This information is for educational purposes only and does not constitute medical advice. Always consult qualified healthcare providers.
Key Studies Cited
Use the source links in the research discussion above to inspect the referenced records.
This dossier synthesizes available evidence from peer-reviewed literature, regulatory documents, and clinical trial registries. Evidence strength labels summarize the cited material for this entry and should be read alongside its population, model, and study limitations.
For complete methodology details, see our Methodology page.
Important Disclaimer
This dossier is for educational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider before making health decisions.
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Compared With
3 comparisonsConditions Studied
2 entries- N-Acetyl Semax Amidate for Cognitive Enhancement Parent compound Semax has been studied in Russia for cognitive enhancement and is approved there for nootropic use. However, N-Ace…
- N-Acetyl Semax Amidate for Neuroprotection Semax has been studied in Russian stroke rehabilitation contexts. N-Acetyl Semax Amidate has not been evaluated for neuroprotectiv…