N-Acetyl Semax Amidate Reconstitution Calculator
Enter the amount you want to measure. The vial buttons will highlight which vial strengths create cleaner syringe-unit measurements.
What amount do you need?
Type the target amount, then choose mg or mcg. Example: 2mg or 500mcg.
Syringe size:
Possible vial strengths:
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Example N-Acetyl Semax Amidate Titration Schedule
| Week | Daily Dose (mcg) | Injection Volume (mL / Units) |
|---|---|---|
| Weeks 1–2 | 200 mcg (0.200 mg) | 0.06 mL (6 units) |
| Weeks 3–4 | 300 mcg (0.300 mg) | 0.09 mL (9 units) |
| Weeks 5–6 | 400 mcg (0.400 mg) | 0.12 mL (12 units) |
| Weeks 7–12 | 500 mcg (0.500 mg) | 0.15 mL (15 units) |
Possible vial strengths:
What Is It?
N-Acetyl Semax Amidate
Stabilised semax variant.
Bacteriostatic Water
Sterile water containing a bacteriostatic preservative, commonly used when preparing multi-use research vials.
How To Mix N-Acetyl Semax Amidate
1
CleanUse alcohol swabs to clean the tops of both vials.
2
Draw BAC WaterDraw the selected amount of bacteriostatic water.
3
Inject SlowlyAdd the liquid slowly down the side of the vial.
4
Swirl GentlyDo not shake. Swirl gently until dissolved.
5
Store ProperlyStore as directed and protect from heat and light.
Best Practices & Common Mistakes
Best Practices
- Use sterile technique.
- Protect from light and heat.
- Store refrigerated when appropriate.
- Use clean syringe-unit math before measuring.
Common Mistakes
- Confusing milligrams with milliliters.
- Choosing an option with awkward decimal units.
- Using too little liquid for very small measurements.
- Shaking the vial aggressively.
N-Acetyl Semax Amidate Storage & Handling
Lyophilized Powder: −20°C (−4°F) for long-term storage (up to 24 months). Refrigeration 2–8°C (36–46°F) for short-term use (up to ~3 months). Original sealed vial in the freezer is safest.
Reconstituted Solution: 2–8°C (36–46°F), use within ~7–14 days. Keep sealed, avoid light, and do not repeat freeze-thaw cycles.
Reconstituted Solution: 2–8°C (36–46°F), use within ~7–14 days. Keep sealed, avoid light, and do not repeat freeze-thaw cycles.
Frequently Asked Questions
N-Acetyl Semax Amidate (often shortened to NASA) is the most heavily modified version of the Russian nootropic peptide Semax, carrying two chemical changes at once: an acetyl group on one end and an amide group on the other. Both tweaks are there to slow enzymatic breakdown, making it the strongest and longest-acting member of the Semax family. Like the others it's a brain-focused, BDNF-driven peptide, used mainly as a nasal spray.
The two modifications don't add a new drug effect — they protect the molecule. Acetylation caps the N-terminus and amidation caps the C-terminus, so the peptidases that would normally chop plain Semax apart in minutes have a much harder time. The practical result is a longer window of action and higher effective potency from the same tiny amount. You may also see "acetate" in the name, which is just the salt form for stability, not another active change.
Versus plain Semax, NASA is roughly 3–5× as potent and much longer-acting, so it's dosed at a fraction — matching a standard Semax amount would be far too much. It's often paired or confused with N-Acetyl Selank Amidate (NA-Selank), but those target different things: the Semax line leans toward focus, drive, and neuroprotection, while the Selank line leans toward calm and anti-anxiety. In blends they're meant to complement each other, not substitute.
It's most often sold as a pre-made nasal spray, so no mixing is needed; only a research powder is reconstituted. For a 30 mg vial, adding 3 mL of bacteriostatic water gives 10 mg/mL, so a 300 mcg amount draws to 0.03 mL (3 units on a U-100 syringe) — an extremely small volume, which is exactly why the higher-potency form is usually delivered nasally in metered sprays rather than injected. Because a little goes a long way here, precise measuring matters more than with plain Semax.
NASA is not FDA-approved and, unlike plain Semax, isn't even a registered medicine in Russia — it's a research-only modification with no human trials of its own, and its safety is inferred from the parent peptide plus community use. The main caution is its longer, stronger action: extended BDNF stimulation is more relevant for anyone with a seizure disorder or on serotonergic medication, and there's no purity or interaction oversight. It should not be given to children. Storage: keep the powder cold and dry, and store the reconstituted solution or spray refrigerated at about 4 °C.
Practical takeaway: If your real goal is weight or metabolic health, the most useful next step is discussing approved treatment options with a clinician rather than relying on an unapproved compound.
Important: This tool is for informational and research-reference purposes only. Not intended for human or veterinary use.