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

Cerebrolysin: Standardized mixture of neuropeptides derived from porcine brain proteins; mimics endogenous neurotrophic factors (BDNF, NGF, CNTF); promotes neurogenesis and synaptic plasticity 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 Cerebrolysin FDA approved?

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

How is Cerebrolysin administered in research settings?

In research settings, Cerebrolysin is typically administered via the intravenous or intramuscular 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›Cerebrolysin vs N-Acetyl Semax

Peptide Comparison

Cerebrolysin vs N-Acetyl Semax

Both are Neuro & Cognitive peptides.

Cerebrolysin

FPF 1070

CognitiveInvestigationalResearch Only

Half-life: Varies by component

32 providers listed

Full Cerebrolysin profile →

N-Acetyl Semax

NA-Semax

CognitiveResearch Only

4 providers listed

Full N-Acetyl Semax profile →

Bottom line

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

Quick Verdict

Cerebrolysin

Evidence

Established Clinical

N-Acetyl Semax

Evidence

Not rated

Which One Should You Choose?

Your goal	Better option
Has published research citations	Cerebrolysin
Further along in FDA review	Cerebrolysin
More provider options (32 vs 4)	Cerebrolysin

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

Side-by-Side Comparison

Cerebrolysin

N-Acetyl Semax

Mechanism Family

Neuro & Cognitive

Half-life

Varies by component

—

FDA Status

investigational

unknown

Admin Routes

intravenous, intramuscular

intranasal, subcutaneous

Availability

Research Only

Providers

32 listed

4 listed

Avail. Notes

Neuropeptide mixture approved in EU/Asia but NOT FDA-approved. Phase 2/3 US trials for Alzheimer's disease and stroke with active IND. No NDA filed. Research use in US.

—

Research Evidence

Cerebrolysin

Established ClinicalMeta-analysis · 5 key studies · most recent 2026

N-Acetyl Semax

No citations on file

Research Citations

Cerebrolysin

Cohort2026 · Cells

Exosomes Released by Cerebrolysin-Treated Cerebral Endothelial Cells Reverse Fibrin- or tPA-Impaired Endothel…

Cohort2026 · Biomolecules

Biochemical and Pharmacological Studies on Kynurenic Acid Metabolism in the Helix pomatia-Snail Model of Lear…

Cohort2026 · Asian J Neurosurg

Neuroprotective Effects of Cerebrolysin in Moderate Traumatic Brain Injury with Nonoperative Lesions: A 6-Mon…

RCT2024 · Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova

Cerebrolysin in the preventive therapy of dementia in elderly patients with mild cognitive impairment: a thre…

+1 more

N-Acetyl Semax

No citations on file.

About Cerebrolysin

Standardized mixture of neuropeptides derived from porcine brain proteins; mimics endogenous neurotrophic factors (BDNF, NGF, CNTF); promotes neurogenesis and synaptic plasticity

Research Areas

neuroprotectionneuroplasticitymemory improvementcognitive recovery

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.

Cerebrolysin

Reported (Unverified — Pending Clinical Review)

epilepsyrenal failureporcine protein allergy

No established clinical contraindications

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

Cerebrolysin

32 listed

Browse directory →

Providers offering

N-Acetyl Semax

4 listed

Browse directory →

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.