# NA-Semax

> NA-Semax (N-Acetyl Semax) is a modified form of Semax with an added acetyl group intended to increase resistance to peptidase degradation and extend its duration of activity relative to the parent compound. It is discussed in research and vendor literature as a longer-acting alternative offering similar nootropic and neuroprotective effects attributed to Semax. Dedicated independent clinical research on the acetylated form is limited, with much of its proposed profile inferred from Semax studies. It is not approved for medical use and is available only as a research compound.

- URL: https://www.lifeconverted.com/peptides/na-semax
- Also known as: N-Acetyl Semax
- Primary category: Cognitive & Neuro
- Effectiveness rank: #10 in Cognitive & Neuro
- Evidence level: Moderate evidence
- Route: Subcutaneous (Historically discussed as an extended-duration analog of an intranasally-used parent compound; this profile reflects subcutaneous injection as used in current research contexts.)
- Dose range: 200-600 mcg
- Dose tiers: low 200 mcg; moderate 400 mcg; high 600 mcg
- Half-life: Reported to be longer than standard Semax due to the acetyl modification, though precise human pharmacokinetic characterization is limited.
- Timing: Morning
- Cycle: 4-6 weeks on, 2-4 weeks off (Cycling guidance is largely extrapolated from Semax research rather than dedicated studies of the acetylated form.)
- Storage: Store lyophilized peptide refrigerated (2-8°C) or frozen prior to reconstitution, protected from light. After reconstitution, keep refrigerated and use within about 2-4 weeks.

## Mechanism of action

NA-Semax is proposed to act through pathways similar to Semax, including modulation of BDNF expression and central dopaminergic and serotonergic signaling, with the acetyl modification intended to slow enzymatic breakdown and prolong systemic exposure. Direct comparative pharmacokinetic data between Semax and NA-Semax in humans are limited.

## Reported benefits

- Proposed extended duration of action compared with standard Semax
- Explored for potential effects on attention and short-term memory
- Studied to a limited extent for neuroprotective properties
- May permit less frequent dosing than the parent peptide

## Reported side effects

- Injection site irritation
- Possible overstimulation or irritability at higher doses
- Limited independent safety data specific to the acetylated form
- Uncertain long-term effects given sparse dedicated research

## Common protocols

- Less frequent dosing intervals than standard Semax owing to its proposed extended activity

## Stacking notes

Sometimes discussed as an alternative to standard Semax within broader cognitive-focused research stacks; no controlled combination data exist.

---

Educational information only, not medical advice. Full disclaimer: https://www.lifeconverted.com/disclaimer