What it is claimed to help
These are the uses attached to GHRP-2 in research, clinical practice, or marketing. Listing a claim is not endorsing it — tap any of them to see every other compound carrying the same claim.
What the human evidence actually is
Small, uncontrolled, foreign-registry or single-group human studies only.
Pharmacological, plus one narrow approval. Pralmorelin is approved in Japan as a diagnostic injection to test GH secretory capacity. It reliably raises GH in humans. There are no efficacy trials for muscle, fat or aging.
How it is supposed to work
Ghrelin receptor agonist; raises GH but also stimulates cortisol and prolactin more than ipamorelin does.
Safety
Transient increases in cortisol and prolactin. Appetite stimulation. No long-term data.
Storage and handling
Lyophilised peptide is generally stored at 2–8 °C, or below −20 °C for long-term storage. Reconstituted in bacteriostatic water (0.9% benzyl alcohol) a solution is typically treated as usable for about 28 days refrigerated, versus roughly 24 hours for plain sterile water, which has no preservative. Add the water slowly down the vial wall and swirl — never shake, which shears peptide chains and foams the solution.
Whatever number a protocol or a prescriber gave you, converting it into syringe units is where a misplaced decimal becomes a tenfold error. Our calculators do that conversion and nothing else — they never invent a dose.
Open the calculatorsSources
- Japanese approval documentation, pralmorelin (GHRP-2)
- Bowers CY. GHRP pharmacology reviews
Verified against primary sources on 27 August 2026. Regulatory status in this field changes several times a year. See How We Rate Evidence.