Research Use Only - Not for human consumption. 18+ only.
BGrade BSmaller human trials, observational studies, or approved in 30+ countriesCompoundableCompoundableLegal to compound in the US; approved in other jurisdictions or has historical approvalCognitive EnhancementSubcutaneous

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.

Research Status

BGrade BSmaller human trials, observational studies, or approved in 30+ countriesCompoundableCompoundableLegal to compound in the US; approved in other jurisdictions or has historical approval

Limited Clinical Data

For research purposes only. Not approved for human use. Not medical advice.

Research Areas

Enhances memory consolidation and recall
Improves attention and mental focus
Supports neuroprotection and brain cell survival
Reduces anxiety and stress response
Promotes neuroplasticity and learning capacity
Enhances mood and emotional regulation
Supports cognitive recovery after injury

Side Effects

Nasal irritation or mild rhinitis
CommonMild

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.

Mild headache
UncommonMild

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.

Insomnia or sleep disruption
UncommonMild

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.

Increased anxiety or restlessness
RareMild

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.

Mild appetite suppression
RareMild

Reported in <1% of users. Likely related to monoaminergic effects on appetite regulation. Not clinically significant in most cases.

Nasal bleeding or epistaxis
RareMild

Reported in <1% of users with prolonged intranasal use or pre-existing nasal pathology. Discontinue use and consult a healthcare provider if bleeding persists.

Allergic reaction (rash, urticaria, angioedema)
RareSerious

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

ParameterValue
Dose range200-600 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

Use the PeptideVolt reconstitution calculator for your exact concentration

Molecular and Pharmacological Data

SequenceMembers 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.

Pathways and mechanism detail available to members

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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.