N-Acetyl Semax Amidate
Cognitive & neuro Research only Animal studies
Also called NA-Semax Amidate, Ac-MEHFPGP-NH2
Semax with protective caps on both ends — an acetyl group at one end, an amide at the other. The caps slow the enzymes that would otherwise chew it up, which is intended to extend how long it lasts, particularly when given nasally.
Why people take it
What studies report
- Shares the seven-residue core of Semax, which raises BDNF in the brain
- Terminal capping slows breakdown by exopeptidases in lab assays
In practice Unapproved use
- Preferred by users who find plain Semax too short-acting
Reported real-world use, not evidence and not a recommendation.
Worth knowing: The capped form has far less direct research behind it than Semax itself — most claims are inferred from the parent peptide rather than demonstrated for this version.
Status: Research compound. Not approved.
- Route
- Intranasal spray
- Sequence
- Ac-Met-Glu-His-Phe-Pro-Gly-Pro-NH2
- Formula
- C39H54N10O10S
- Molecular weight
- 855.0 g/mol
- CAS
- 2920938-90-3
- Available as
- 20 mg
Educational information only. Nothing here is medical advice, a dosing protocol, or a recommendation to use any compound. Most entries describe substances not approved for human use. Talk to a licensed clinician before acting on anything you read here. How to read these entries.