What is the difference between Davunetide and N-Acetyl Semax?

Davunetide: Stabilizes microtubules by interacting with tubulin and microtubule-associated proteins. Activates SIRT1, reduces amyloid-β toxicity, and enhances synaptic plasticity. Protects against tau hyperphosphorylation. N-Acetyl Semax: Same ACTH(4-7) core as Semax, but structural modifications resist peptidase degradation. Enhances BDNF expression, supports dopaminergic and serotonergic neurotransmission, and modulates NMDA receptor activity.

Is Davunetide FDA approved?

Davunetide is investigational and not FDA approved. It is discussed for research and educational purposes only, not as medical guidance.

How is Davunetide administered in research settings?

In research settings, Davunetide is typically administered via the intranasal or subcutaneous routes. PeptideBase does not provide dosing or administration instructions.

How is N-Acetyl Semax administered in research settings?

In research settings, N-Acetyl Semax is typically administered via the intranasal or subcutaneous routes. PeptideBase does not provide dosing or administration instructions.

Home›Research›Compare›Davunetide vs N-Acetyl Semax

Peptide Comparison

Davunetide vs N-Acetyl Semax

Both are Neuro & Cognitive peptides.

Davunetide

NAP

CognitiveInvestigationalResearch Only

No providers listed yet

Full Davunetide profile →

N-Acetyl Semax

NA-Semax

CognitiveResearch Only

4 providers listed

Full N-Acetyl Semax profile →

Bottom line

Davunetide has published research citations on file; N-Acetyl Semax does not yet — the main evidence gap between them.

Quick Verdict

Davunetide

Evidence

Clinical

N-Acetyl Semax

Evidence

Not rated

Which One Should You Choose?

Your goal	Better option
Has published research citations	Davunetide
Further along in FDA review	Davunetide
More provider options (0 vs 4)	N-Acetyl Semax

Research summary only — not medical advice. Consult a qualified provider before making any decisions.

Side-by-Side Comparison

Davunetide

N-Acetyl Semax

Mechanism Family

Neuro & Cognitive

Half-life

—

FDA Status

investigational

unknown

Admin Routes

intranasal, subcutaneous

Availability

Research Only

Providers

None listed

4 listed

Research Evidence

Davunetide

ClinicalRCT · 3 key studies · most recent 2026

N-Acetyl Semax

No citations on file

Research Citations

Davunetide

Cohort2026 · Epilepsy Res

Microtubule-stabilizing drugs suppress convulsions in a C. elegans model of CAMSAP disorders.

RCT2013 · Neuropsychopharmacology

Effects of davunetide on N-acetylaspartate and choline in dorsolateral prefrontal cortex in patients with sch…

RCT2011 · Schizophrenia Research

Effect of the neuroprotective peptide davunetide (AL-108) on cognition and functional capacity in schizophren…

N-Acetyl Semax

No citations on file.

About Davunetide

Stabilizes microtubules by interacting with tubulin and microtubule-associated proteins. Activates SIRT1, reduces amyloid-β toxicity, and enhances synaptic plasticity. Protects against tau hyperphosphorylation.

Research Areas

neuroprotectiontau stabilizationcognitive enhancementmemorysynaptic plasticity

About N-Acetyl Semax

Same ACTH(4-7) core as Semax, but structural modifications resist peptidase degradation. Enhances BDNF expression, supports dopaminergic and serotonergic neurotransmission, and modulates NMDA receptor activity.

Research Areas

BDNF and NGF upregulation extrapolated from parent compound semax researchdopaminergic and serotonergic modulation (semax mechanism basis)acetylation proposed to improve enzymatic stability vs base semaxno independent PubMed evidence for this specific modified compound

Safety Profile

Information below reflects published research data only — not medical advice. Consult a qualified provider before use.

Davunetide

No established clinical contraindications. This is an investigational compound with limited human data and has not been evaluated by the FDA for safety in this context. Consult a qualified clinician.

N-Acetyl Semax

No established clinical contraindications. This is an investigational compound with limited human data and has not been evaluated by the FDA for safety in this context. Consult a qualified clinician.

Find Providers

Where to source these peptides

Providers offering

Davunetide

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Providers offering

N-Acetyl Semax

4 listed

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PeptideBase lists providers for educational research purposes only. Always consult a qualified healthcare professional before obtaining or using any peptide.

More Neuro & Cognitive Comparisons

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Educational research tools — not medical advice.