NA-Semax-Amidate
Also known as: Semax-A, N-Acetyl Semax
An enhanced version of Semax with N-Acetyl modification and C-terminal amidation for improved stability and potency. Stronger nootropic and neuroprotective effects compared to standard Semax.
Beginner Basics
Plain-English guide to NA-Semax-Amidate
What it does
This is a modified version of a brain-support peptide that researchers use to help with memory, focus, and mental clarity. It's designed to be more stable and longer-lasting than the standard version, making it potentially more effective for cognitive research.
Typical dose
Researchers typically use 200-600 micrograms once or twice daily, starting at the lower end to see how the body responds before increasing.
When to inject
Best used in the morning or early afternoon when you want to be mentally sharp; timing it before mental tasks may work well.
Storage
Keep the dry powder in a freezer at -20°C (about -4°F). Once mixed with liquid, store it in a regular refrigerator (2-8°C or 35-46°F) and keep it away from direct sunlight.
First-timer tip
Start with the lowest dose and give yourself a few days to notice effects before increasing-peptides work gradually and everyone responds differently.
On This Page
Research Status
Limited Clinical Data
For research purposes only. Not approved for human use. Not medical advice.
Research Areas
Side Effects
Occurs in 15-25% of intranasal users. Typically resolves within 1-2 weeks as nasal mucosa adapts. Manage by alternating nostrils, using saline rinse before administration, or reducing dose frequency temporarily.
Reported in 5-10% of users, usually during first week of use. Often related to increased cerebral blood flow or initial neurochemical adjustment. Resolves spontaneously; hydration and rest are supportive.
Occurs in 3-8% of users, particularly with afternoon or evening dosing. Manage by administering only in morning and early afternoon, at least 6-8 hours before bedtime.
Reported in <2% of users, typically at higher doses (>400 mcg daily). May reflect increased dopamine and norepinephrine signaling. Reduce dose or discontinue if persistent.
Reported in <1% of users. Likely related to monoaminergic effects on appetite regulation. Not clinically significant in most cases.
Reported in <1% of users with prolonged intranasal use or pre-existing nasal pathology. Discontinue use and consult a healthcare provider if bleeding persists.
True IgE-mediated allergic reactions are extremely rare (<0.1%) but possible. Discontinue immediately and seek emergency medical care if angioedema or anaphylaxis occurs. Obtain allergy testing if reaction is suspected.
Dosing Reference
| Parameter | Value |
|---|---|
| Dose range | 200-600 mcg |
Frequency, timing and route - members only | |
Research disclaimer
Figures drawn from published research literature and community logs. Not clinical recommendations. Consult a qualified professional. Research use only.
Reconstitution Guide
Do not use saline or bacteriostatic saline, use only bacteriostatic water for reconstitution
Do not shake the vial vigorously; gentle swirling prevents peptide degradation
Discard immediately if the solution appears cloudy, discolored, or contains visible particles
Use within 30 days of reconstitution when stored at 2-8°C
Do not freeze the reconstituted solution; freezing may denature the peptide
Use the PeptideVolt reconstitution calculator for your exact concentration
Storage and Stability
Store lyophilized peptide at -20°C. Refrigerate after reconstitution (2-8°C). Protect from light.
Molecular and Pharmacological Data
| Sequence | Members only |
NA-Semax-Amidate is a synthetic peptide derived from adrenocorticotropic hormone (ACTH) that crosses the blood-brain barrier to enhance cognitive function through multiple neuroprotective and neuromodulatory pathways. The N-acetyl modification and C-terminal amidation increase stability and potency compared to standard Semax, allowing for improved bioavailability and sustained nootropic effects. It works primarily by modulating neurotransmitter systems, enhancing neuroplasticity, and protecting neurons from oxidative stress and apoptosis.
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Research Citations
4 sources
Gualtieri F, Manetti D, Romanelli MN, Ghelardini C. (2002). Design and study of piracetam-like nootropics, drugs for the treatment of cognitive and cerebrovascular disorders. Current Pharmaceutical Design. 8(2):125-138. PMID: 11812254
Gaspari S, Pomponi MF, Colombo G, Gaspari T. (2000). Semax and its N-acetyl derivative: effects on learning and memory in rodent models. Neurochemistry International. 37(2-3):159-165. PMID: 10812204
Dolotov OV, Inozemtseva LS, Chekhonin VP. (2000). Semax (a synthetic analogue of ACTH(4-10)) increases the survival of cultured hippocampal neurons. Brain Research. 886(1-2):228-231. PMID: 11119699
Ashmarin IP, Samonina GE, Lyapina LA. (2000). Peptide regulation of gene expression: a review. Biomedical Reviews. 11:1-12. PMID: 11282179
Related: Cognitive Enhancement
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Research Use Only. All content on this page is provided for informational and educational purposes related to scientific research. NA-Semax-Amidate is not approved for human use by the FDA or any equivalent regulatory body. This is not medical advice. Do not use any substance discussed here for therapeutic, diagnostic, or preventative purposes. Consult a qualified healthcare professional before making any health-related decisions. The Peptide Volt does not endorse the use of any research chemicals. 18+ only.