§ 01 Overview
Overview
Acetylated Semax analog with improved stability and bioavailability.
Limited independent data beyond Semax literature.
§ 02 Mechanism
Mechanism of action
NA-Semax is N-acetylated, improving proteolytic stability while retaining the BDNF-upregulating and ACTH-derived neurotrophic profile of Semax.
- 01Similar nootropic profile to Semax
- 02Longer half-life
§ 03 Dosing
Dosing protocol
Standard Protocol
- Dose Range
- 250 – 1000 mcg per dose
- Route
- Intranasal
- Timing
- AM
- Frequency
- Daily or 2x weekly
§ 04 Evidence
Evidence & research
Limited independent data beyond Semax literature.
FDA Status
Not FDA-approved.
§ 05 Stacks
Common stacks
§ 06 News
In the news
1 article from the last 12 months · updates hourly
N-Acetyl Semax: Multifaceted Role and Research Potential in Neuroscience - Ripples Nigeria
N-Acetyl Semax: Multifaceted Role and Research Potential in Neuroscience Ripples Nigeria
§ 07 Sourcing
Sourcing & supply
Regulatory status
Restricted from compounding
Placed on the FDA's 503A Category 2 list and cannot be lawfully compounded in the US. No brand pharmacy alternative exists. US buyers encounter only research-use-only (RUO) channels, which the FDA's Intended Use Doctrine treats as unapproved drug sales.
International · 2
Cosmic Nootropic
The most credible Russian / Khavinson source for US buyers. Sources authentic bioregulators through 'Peptides Company' (ex-NPCRIZ).
Rupharma
12+ year Russian pharmacy reseller. Reviews.io 4.84/5 (81+). Has a genuine US warehouse for common peptides.
Listings are informational, not endorsement. Verify credentials and flags against FDA and PCAB databases before purchasing. Full directory & how to verify →
§ 09 Safety
Safety & side effects
Side effects
- 01Mild headache
- 02Nasal irritation
Contraindications
None specified.
§ 10 Questions
NA-Semax FAQ
- What is NA-Semax?
- Acetylated Semax analog with improved stability and bioavailability. NA-Semax is N-acetylated, improving proteolytic stability while retaining the BDNF-upregulating and ACTH-derived neurotrophic profile of Semax.
- What is NA-Semax used for?
- Reported uses include similar nootropic profile to semax and longer half-life. Evidence strength is rated Preclinical — see the evidence section for detail.
- How is NA-Semax dosed?
- Commonly referenced dosing is 250 – 1000 mcg per dose, typically daily or 2x weekly, administered Intranasal. This is educational reference only; consult a licensed clinician before use.
- What are the side effects of NA-Semax?
- Commonly reported side effects include mild headache and nasal irritation. This list is not exhaustive.
- Is NA-Semax legal?
- Placed on the FDA's 503A Category 2 list and cannot be lawfully compounded in the US. No brand pharmacy alternative exists. US buyers encounter only research-use-only (RUO) channels, which the FDA's Intended Use Doctrine treats as unapproved drug sales. FDA status: Not FDA-approved..