Not medical advice. Talk to your provider before using any peptide.
Full disclaimerPeptide Schedule Research TeamReviewed Apr 20269 Citations
Semax triples hippocampal BDNF in rodent models and is approved for stroke recovery in Russia. Short 10 to 20 day intranasal or subcutaneous cycles produce focus and memory benefits that persist weeks after stopping. No RCTs in healthy adults exist.
200mcg · Daily
Summary: Add 2mL BAC water to your 5mg vial. Draw to 8.0 units on a U-100 syringe for a 200mcg dose. This vial will last 25 doses.
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| Level | Dose / Injection | Frequency |
|---|---|---|
| Beginner | 200mcg | Daily |
| Moderate | 500mcg | Daily |
| Aggressive | 1mg | Daily |
Reconstitution math for the standard setup: 5 mg vial plus 2 mL bacteriostatic water gives you 2500 mcg/mL. On a U-100 insulin syringe, 200 mcg is 8 IU, 300 mcg is 12 IU, 400 mcg is 16 IU, 500 mcg is 20 IU. For pre-made nasal spray (common at 30 mg/10 mL = 3000 mcg/mL), verify the mcg-per-spray with your vendor before dosing. Spray calibration varies between atomizers. Morning only. Nothing after noon. The dopaminergic tail will disrupt your sleep if you dose late. This is the single most common correctable complaint in community reports. Start at 200 mcg. Assess tolerance for 3 days before moving to 300 mcg. The response curve is clear in the community data; 300 to 500 mcg is where most users settle. If you feel nothing by day 5, check three things. Is the vial refrigerated and under 21 days post-reconstitution? Is the reconstitution volume correct (a dilution error is the most common source problem)? Did you actually dose in the morning on an empty stomach? Advancing to 400 mcg is reasonable after ruling those out. Stacking with Selank 300 mcg intranasal takes the edge off for users sensitive to the dopaminergic stimulation. That combination is the community default for good reason.
Dosing based on Community dosing consensus from peptide research communities — 15 published references.View all sources →
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Pricing updated 2026-04-09
Prices are estimates and vary by source, location, and prescription status.Full pricing breakdown →
Disclaimer: This curve is a simplified first-order exponential decay model. Actual pharmacokinetics vary based on injection site, individual metabolism, body composition, and other factors. Half-life values are approximate and based on available preclinical and clinical literature. Many research peptides lack formal human pharmacokinetic studies. This is for educational purposes only — not medical advice.
Semax triples hippocampal BDNF in rodent models and is approved for stroke recovery in Russia. Short 10 to 20 day intranasal or subcutaneous cycles produce focus and memory benefits that persist weeks after stopping. No RCTs in healthy adults exist.