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    Growth Hormone / IGF-1 AxisPhase II

    GHRP-2 Dosage Guide

    Protocols, calculator & research for GHRP-2.

    Dose Range

    100–300 mcg per injection

    Frequency

    1–3 times daily; bedtime injection most important

    Cycle Length

    8–12 weeks with 4-week breaks

    Half-Life

    ~1 hour

    Administration Routes

    SubcutaneousIntramuscularIntranasal

    Reconstitution Calculator

    Calculate exact dosing for GHRP-2 — BAC water volume, syringe units, and concentration. Common vial sizes: 5mg, 10mg

    Weight-Based Dosing

    1–2 mcg/kg per injection. Saturation dose ~100–200 mcg for most.

    Dosing Protocols

    Beginner
    100 mcg subcutaneous at bedtime on empty stomach for 8 weeks.
    Intermediate
    150–200 mcg subcutaneous 2x/day (morning fasted + bedtime) for 12 weeks. Pair with CJC-1295 100 mcg.
    Advanced
    200–300 mcg subcutaneous 3x/day with CJC-1295 for maximum GH output. Monitor cortisol and prolactin.

    Stacking Recommendations

    Combine with CJC-1295 for amplified GH output. Cortisol management is important on extended GHRP-2 protocols — consider phosphatidylserine supplementation.

    Side Effects & Safety

    Moderate: significant hunger increase (30 min post-injection), water retention, mild cortisol elevation, mild prolactin elevation. Higher doses: joint pain, numbness, lethargy.

    Additional Notes

    Inject on empty stomach. Strongest GH releaser of the GHRPs but with more side effects than Ipamorelin. Causes noticeable hunger increase ~15 minutes after injection.

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    Frequently Asked Questions

    What is the recommended dosage for GHRP-2?

    The typical dose range for GHRP-2 is 100–300 mcg per injection. It is usually administered 1–3 times daily; bedtime injection most important. Always start with the lowest effective dose and consult with a qualified professional.

    How often should GHRP-2 be administered?

    1–3 times daily; bedtime injection most important

    How long is a typical GHRP-2 cycle?

    8–12 weeks with 4-week breaks

    What are the side effects of GHRP-2?

    Moderate: significant hunger increase (30 min post-injection), water retention, mild cortisol elevation, mild prolactin elevation. Higher doses: joint pain, numbness, lethargy.

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