N-Acetyl Semax Amidate
Also known as: NA-Semax-Amidate, N-Acetyl Semax Amide
Enhanced version of Semax with N-Acetyl modification and C-terminal amidation. Provides stronger nootropic effects with better bioavailability and stability than standard Semax.
Beginner Basics
Plain-English guide to N-Acetyl Semax Amidate
What it does
This peptide is studied for supporting brain function-helping with memory, focus, and how quickly your brain processes information. Researchers use it because the chemical modifications make it work longer in your body and get absorbed better than the original version.
Typical dose
Researchers typically start with 200 micrograms once per day, given as a nasal spray, and may increase to 200-600 micrograms once or twice daily based on response.
When to inject
Use it in the morning or early afternoon when you need cognitive support, since it's designed to enhance mental performance during waking hours.
Storage
Keep the dry powder in a freezer at -20°C (about -4°F). Once mixed with liquid, store it in a regular refrigerator between 2-8°C (36-46°F) and keep it away from light.
First-timer tip
Start with the lowest dose once daily for at least a week before increasing-this lets you see how your body responds without jumping to higher amounts right away.
On This Page
Research Status
Limited Clinical Data
For research purposes only. Not approved for human use. Not medical advice.
Research Areas
Side Effects
May occur with intranasal administration, especially with higher doses or frequent use. Typically resolves within minutes. Mitigate by ensuring nasal passages are clear, using saline rinse before administration, and rotating nostrils.
Occasionally reported in the first few days of use. Usually self-resolving. May be related to increased cerebral blood flow or initial CNS stimulation. Ensure adequate hydration.
More likely if doses are taken late in the day. Avoid administration after 2-3 PM. If insomnia persists, reduce dose or frequency.
Some users report heightened mental stimulation, particularly at higher doses. This is generally considered a therapeutic effect but may be uncomfortable for sensitive individuals. Reduce dose if necessary.
Rare; may occur with prolonged daily use. Rotate nostrils and consider periodic breaks (e.g., 5 days on, 2 days off) to prevent chronic nasal irritation.
Rarely reported; more likely in individuals sensitive to stimulants or at doses exceeding 600 mcg daily. Reduce dose if this occurs.
Very rare but possible in individuals with peptide sensitivity. Discontinue immediately and seek medical attention if signs of anaphylaxis appear.
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
Molecular and Pharmacological Data
| Molecular weight | 547.6 |
| Half-life | 15-30 minutes (intranasal); longer CNS residence time due to direct brain delivery |
| Sequence | Members only |
N-Acetyl Semax Amidate is a synthetic analog of ACTH(4-10) with N-acetyl modification at the N-terminus and C-terminal amidation, which enhance stability and bioavailability. It acts as a nootropic by modulating neurotransmitter systems, promoting neuroprotection, and enhancing synaptic plasticity through multiple pathways including BDNF signaling and dopaminergic/adrenergic systems. The peptide crosses the blood-brain barrier via intranasal administration and supports cognitive function without direct hormone-like systemic effects.
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View all peptidesResearch Use Only. All content on this page is provided for informational and educational purposes related to scientific research. N-Acetyl 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.