GHRP-2 — dosage, half-life & reference guide

Growth hormone peptide · also known as Growth Hormone Releasing Peptide-2, Pralmorelin

A potent growth hormone secretagogue — stronger than Ipamorelin but with more side effects. GHRP-2 triggers significant GH release and IGF-1 production, but also raises cortisol and prolactin to some degree. Less appetite stimulation than GHRP-6, making it a middle-ground option.

Commonly-researched dose ranges

GHRP-2 is commonly researched at 100–300 mcg, 2–3x daily, by SubQ injection. These are reference ranges from the literature and community use, not a prescription.

Half-life

Estimated half-life: ~30 min. See how it accumulates in the half-life calculator.

Safety & interactions

Commonly reported effects: increased appetite, water retention, fatigue, headache, cortisol/prolactin increase. Discuss with your clinician.

Open the full GHRP-2 guide (needs JavaScript). PepVault is a private research and tracking tool, not medical advice.