NA Semax Amidate
Well studiedEnhanced Nootropic Peptide | Cognitive Enhancement & Neuroprotection
Enhanced and stabilized version of Russian nootropic Semax with superior stability, extended half-life, and enhanced bioavailability through acetylation and amidation modifications.
Molecular & research data
- Sequence
- Asn-Ala-Met-Glu-His-Phe-Pro-Gly-Pro-NH₂
- Molecular weight
- 1,007.16 Da
- Half-life
- 2-10 hours
- Primary targets
- bdnf
- Routes (research)
- Nasal, Injectable
- Storage
- Refrigerate at 2-8°C
Overview
Enhanced and stabilized version of Russian nootropic Semax with superior stability, extended half-life, and enhanced bioavailability through acetylation and amidation modifications.
Mechanism of action
Bypasses blood-brain barrier via olfactory nerves with direct brain access; enhances BDNF upregulation and hippocampal plasticity.
Key research findings
- Direct brain access via olfactory nerves
- Rapid onset (15-30 minutes)
- Proven cognitive efficacy
- Extended half-life vs standard Semax
- Enhanced BDNF upregulation
Research applications
Cognitive
- Enhanced Focus and Attention — Rapid improvement in sustained attention, working memory, and mental clarity within 15-30 minutes.
- Memory Formation — Enhances both short-term and long-term memory consolidation through BDNF upregulation.
- Mental Fatigue Resistance — Significant improvement in cognitive performance during mental fatigue, with lasting effects.
Neuroprotection
- Stroke Recovery Support — Accelerates functional recovery through enhanced neuroplasticity and BDNF elevation.
- Oxidative Stress Protection — Protects against neural oxidative damage and supports cellular repair mechanisms.
- Neurotrophic Factor Enhancement — Rapidly increases BDNF and TrkB receptor expression, supporting neuronal survival.
Memory
- Episodic Memory Enhancement — Improves episodic memory formation and recall through default mode network optimization.
- Learning Acceleration — Enhances acquisition of new information through improved synaptic plasticity.
NA Semax Amidate FAQ
What's the difference between NA-Semax Amidate and regular Semax?+
NA-Semax Amidate (N-acetylated, C-terminal amidated) has enhanced stability and an extended half-life of 2-10 hours compared to regular Semax's 0.5-2 hours. The acetylation improves blood-brain barrier penetration and the amidation increases bioavailability, resulting in more sustained cognitive benefits.
How quickly does intranasal NA-Semax Amidate start working?+
Onset is rapid: cognitive clarity and focus improvement begin within 15-30 minutes after intranasal administration. Peak effects occur at 1-2 hours, and cognitive benefits are maintained for 2-6 hours. This rapid onset makes it useful for acute cognitive demands.
Is NA-Semax Amidate safe for people with high blood pressure?+
Caution is advised. The pharmacology flags indicate NA-Semax Amidate raises blood pressure. If you have hypertension, consult your healthcare provider before use. Monitor blood pressure if combining with blood pressure medications, as additive effects are possible.
Can I stack NA-Semax Amidate with other nootropics?+
Yes, but carefully. It combines synergistically with NA-Selank Amidate for comprehensive cognitive and anxiolytic support. It's compatible with BPC-157 and Lion's Mane. However, avoid combining with MAO inhibitors, and monitor if combining with modafinil due to potential overstimulation.
References
- [1]A Nootropic Adrenocorticotropin Analog 4-10 Semax: 15 Years Experience in Its Design and Study (Parent Compound)Zhurnal Vysshei Nervnoi Deiatelnosti imeni I.P. Pavlova
- [2]Effects of Semax on the Default Mode Network of the Brain (Parent Compound)Bulletin of Experimental Biology and Medicine
- [3]The Efficacy of Semax in the Treatment of Patients at Different Stages of Ischemic Stroke (Parent Compound)Zhurnal Nevrologii i Psikhiatrii imeni S.S. Korsakova
- [4]The Peptide Semax Affects the Expression of Genes Related to the Immune and Vascular Systems in Rat Brain Focal Ischemia (Parent Compound)BMC Genomics
- [5]Semax, an Analog of ACTH(4-10), Regulates BDNF and trkB Expression in the Rat Hippocampus (Parent Compound)Brain Research
- [6]The Potential of the Peptide Drug Semax and Its Derivative for Correcting Pathological Impairments in the Animal Model of Alzheimer's DiseaseInternational Journal of Molecular Sciences
- [7]Semax, a Synthetic Regulatory Peptide, Affects Copper-Induced Abeta Aggregation and Amyloid FormationACS Chemical Neuroscience
- [8]Semax Peptide Targets Mu Opioid Receptor Gene Oprm1 for Functional Recovery After Spinal Cord InjuryBritish Journal of Pharmacology
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Last reviewed: 2026-06-26. Information is provided for research and educational reference only — see our disclaimer.