NA-Semax-Amidate vs Semax
Research Verdict
Neither compound has a universal evidence advantage. Both peptides serve distinct research goals with comparable evidence; choose by target mechanism.
Quick Answers
Which is better, NA-Semax-Amidate or Semax?
Neither compound has a universal evidence advantage. Both peptides serve distinct research goals with comparable evidence; choose by target mechanism.
What is the key difference between NA-Semax-Amidate and Semax?
Semax is a validated ACTH(4-7) analog with a characterized mechanism; NA-Semax-Amidate adds N-acetyl and C-amide modifications claimed to increase half-life, but no pharmacokinetic study has been published confirming this.
Evidence Comparison
Semax: approved in Russia and Ukraine, multicenter RCT in ischemic stroke (Lebedeva 2008, n=60), BDNF-mediated neuroprotection data. NA-Semax-Amidate: zero peer-reviewed publications - all claims derive from peptide vendor marketing materials. Semax is categorically stronger.
Evidence Context Favoring NA-Semax-Amidate
No evidence-based scenario favors NA-Semax-Amidate over semax; the structural modification lacks published validation.
Evidence Context Favoring Semax
Any neuroprotection, cognitive enhancement, or stroke recovery research - semax has the published clinical evidence base.
Side-by-Side Snapshot
| Evidence grade | NA-Semax-Amidate: Level D Semax: Level C |
|---|---|
| Research status | NA-Semax-Amidate: Early Research Semax: Approved Outside US |
| Primary category | NA-Semax-Amidate: Cognitive & Nootropic Semax: Cognitive & Nootropic |
| Cited studies | NA-Semax-Amidate: 3 Semax: 2 |