GHRP-2 — 5 mg

GHRP-2 is a synthetic hexapeptide also known as pralmorelin or KP-102. It acts through the growth-hormone secretagogue receptor, the receptor associated with ghrelin, rather than the GHRH receptor targeted by sermorelin or CJC-type peptides. Umbrella Labs describes it as a GH-releasing compound and also notes appetite effects and some effects on cortisol and prolactin. These distinctions place it within both endocrine and feeding-behavior research.

In a randomized experiment reported by Laferrère and colleagues, seven lean healthy men ate more during a buffet-style meal when exposed to GHRP-2 than under the saline comparison condition; growth-hormone concentrations also increased. A subsequent study including lean and obese participants reported increased food intake and GH responses across both groups, with larger effects at the higher experimental exposure. The investigators interpreted these results as evidence that GHRP-2 could help examine ghrelin-related eating behavior in humans. The source descriptions therefore support a dual focus on pituitary hormone release and appetite signaling. They should not be read as making GHRP-2 chemically equivalent to ghrelin or interchangeable with other numbered GHRP peptides.