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    NootropicsApproved (Russia)

    Semax Dosage Guide: Protocols, Calculator & Safety

    Everything you need to know about Semax dosing — protocols, safety, and where to buy.

    Dose Range

    200–1,000 mcg per day intranasal

    Frequency

    Intranasal 1–3 times daily

    Cycle Length

    14–30 days; can repeat after 1–2 week break

    Half-Life

    ~3–5 minutes IV; intranasal extends effective duration to several hours

    Administration Routes

    IntranasalSubcutaneous

    Quick Reconstitution Calculator

    Calculate syringe units instantly

    Syringe Draw

    10.0 units

    2500 mcg/ml · 0.100 ml draw

    Full Tool

    Dosing Protocols

    Beginner
    200–300 mcg intranasal once daily (morning) for 14 days.
    Standard
    300–600 mcg intranasal 2x/day (morning + early afternoon) for 21 days.
    Advanced
    600–1,000 mcg intranasal 2–3x/day for 30 days. Can use N-Acetyl Semax Amidate for enhanced potency.

    Weight-Based Dosing

    Not weight-based. Standard flat dosing.

    Commonly Stacked With

    Classic pairing with Selank for cognitive + anxiolytic synergy. Stacks well with NAD+ and Dihexa for comprehensive nootropic protocols. Can combine with Methylene Blue for mitochondrial support.

    Side Effects & Safety

    Nasal irritation (intranasal), mild headache, occasional dizziness, hair thinning at very high doses (rare). Generally very well-tolerated.

    Contraindications

    Active hypertension (Semax can mildly increase BP). Mania or bipolar disorder. Pregnancy or breastfeeding.

    Check interactions with the Interaction Checker →

    Additional Notes

    Primarily intranasal administration. Russian pharmaceutical Semax® is approved in Russia for cognitive disorders and stroke recovery. Effects on focus and mental clarity often noticed within 15–30 minutes. N-Acetyl Semax Amidate (NASA) is a modified version with enhanced BBB penetration.

    Where to Buy Semax

    Compare 4 listings across 4 vendors — from $34.99

    Frequently Asked Questions

    What is the recommended Semax dosage?

    The typical dose range for Semax is 200–1,000 mcg per day intranasal. It is usually administered Intranasal 1–3 times daily. Always start with the lowest effective dose.

    How often should I take Semax?

    Intranasal 1–3 times daily

    Does Semax need to be cycled?

    Yes, typical cycle length is 14–30 days; can repeat after 1–2 week break.

    What are Semax side effects?

    Nasal irritation (intranasal), mild headache, occasional dizziness, hair thinning at very high doses (rare). Generally very well-tolerated.

    Where can I buy Semax?

    Compare 4 listings from 4 vendors on our price comparison page — starting from $34.99.

    Semax Full Profile

    Research data, mechanisms, and pricing

    Interaction Checker

    Check drug & compound interactions

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