library.onepin.app/n-acetyl-semax-amidate Peptide Education Library
Education only, not medical advice 21+ Every dose is an example to finalize with a licensed provider

OnePin Peptide Library · Cognitive & Mood

Cognitive & Mood Peptide Not FDA-approved · investigational

N-Acetyl Semax Amidate

NA-Semax · N-Acetyl-Semax · Semax Amidate

N-Acetyl Semax Amidate is a modified, more stable analogue of Semax, a synthetic peptide derived from a fragment of adrenocorticotropic hormone (ACTH 4-10). Semax was developed at the Institute of Molecular Genetics of the Russian Academy of Sciences and has been approved in Russia since the 1990s for treatment of stroke, cognitive disorders, and peptic ulcers. The N-acetyl amidate modification increases resistance to enzymatic degradation, enhancing bioavailability and extending its duration of action.,Semax acts primarily as a neurotrophin stimulator, increasing the expression of BDNF and nerve growth factor (NGF) in the brain. Unlike ACTH itself, Semax has no hormonal or steroidogenic activity. It has been extensively studied for neuroprotective and nootropic applications, with particular interest in its ability to support recovery from ischemic brain injury.,While Semax is a registered pharmaceutical in Russia and Ukraine, N-Acetyl Semax Amidate remains a research compound in Western countries. The parent compound has a substantial body of Russian-language clinical literature, though Western peer-reviewed data remains limited.

Quick Start
Route
Subcutaneous (SubQ)
Start low
100-600mcg
Frequency
daily
Timing
No specific requirement

Same as Semax but longer-acting. 1-2 daily doses sufficient. No fasting required.

Start here. Every protocol below is ordered lowest-first. Begin at the smallest effective dose, hold about a week to assess tolerance, and step up only if needed.

Tiered Protocols · lowest first
Quick Start
Conservative start
100-600mcg · Subcutaneous (SubQ) · daily
Lowest starting point. Hold about a week to assess tolerance before stepping up.
100-600mcg
daily
Intermediate
Enhanced Cognitive Drive
200-500 mcg · Nasal · Daily
anecdotal · community
200-500 mcg
Daily
Reconstitution CalculatorU-100
050100u
Draw to
units
01

How it works

Stimulates expression of brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF), promoting neuronal survival, growth, and synaptic plasticity.,Modulates dopaminergic and serotonergic neurotransmission, enhancing attention, motivation, and mood without stimulant-like side effects.,Provides neuroprotective effects through anti-inflammatory and antioxidant mechanisms, reducing glutamate excitotoxicity during ischemic events.

Stimulates expression of brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF), promoting neuronal survival, growth, and synaptic plasticity.,Modulates dopaminergic and serotonergic neurotransmission, enhancing attention, motivation, and mood without stimulant-like side effects.,Provides neuroprotective effects through anti-inflammatory and antioxidant mechanisms, reducing glutamate excitotoxicity during ischemic events.

02

What to expect

Early
Days 1–7

Days 1-7: Subtle improvements in mental clarity, focus, and alertness. Some users report effects within hours.

03

Evidence

HumanModerate
AnimalStrong
In-vitroPresent
1997Effectiveness of semax in acute period of hemispheric ischemic stroke (a clinical and electrophysiological study) · Gusev EI et al, Zhurnal Nevrologii i Psikhiatrii imeni S.S. Korsakova ↗peer reviewed
1999Investigation of mechanisms of neuro-protective effect of semax in acute period of ischemic stroke · Skvortsova VI et al, Zhurnal Nevrologii i Psikhiatrii imeni S.S. Korsakova ↗peer reviewed
2018The efficacy of semax in the treatment of patients at different stages of ischemic stroke · Various, Zhurnal Nevrologii i Psikhiatrii imeni S.S. Korsakova ↗peer reviewed
2024Semax and Pro-Gly-Pro Activate the Transcription of Neurotrophins and Their Receptor Genes after Cerebral Ischemia · Various, Genes ↗peer reviewed
04

Interactions & stacking

What's safe to combine, and what belongs in a separate pin.

Safe & synergistic

BPC-157Tissue repair and nootropic effects are independent - safe to co-administer
EpithalonTelomerase activation and neuroprotection address different biological targets
CortagenCortex bioregulator peptide and Semax have complementary but non-conflicting CNS support mechanisms
PinealonPineal bioregulator and nootropic peptide act through distinct pathways

Keep separate

GHK-CuCopper-peptide complex may oxidize methionine residue in Semax - do not mix in same syringe
05

Pharmacokinetics

Illustrative plasma concentration · 24 h
Half-life
~1-2 hours (enhanced vs native Semax)
Peak · Tmax
~15-30 min SubQ, ~5-10 min intranasal
Elimination
~5-10 hours
Activity
6-12 hours (nootropic and neuroprotective effects)

Storage. Store refrigerated at 2-8C. Protect from light. Reconstituted solution stable for up to 28 days refrigerated.

06

Regulatory status

Approved pharmaceutical in Russia for stroke, cognitive disorders, and optic nerve disease. Not FDA-approved. N-Acetyl Semax Amidate is sold as a research compound in Western countries.

Put it to work

Calculate, log & track

Open N-Acetyl Semax Amidate straight into OnePin with your vial and dose pre-filled, then let it handle the syringe math and remind you before the vial runs out.

Open N-Acetyl Semax Amidate in the app →

Go deeper

The guide & community

The complete N-Acetyl Semax Amidate walkthrough, real protocol discussion and coaching live inside the BlessUp community on Skool.

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