GHRP-2 vs GHRP-6
Two classic GHRPs — cleaner GH release vs pronounced hunger
GHRP-2
A ghrelin-mimetic hexapeptide that produces a sharp GH pulse with only modest appetite stimulation. The balanced middle child of the GHRP family.
Best for
Best when you want a strong GH pulse with less of the intense hunger GHRP-6 causes.
Read full pageGHRP-6
The hungry one. A ghrelin-mimetic that delivers a real GH pulse but is far better known for the appetite avalanche that arrives twenty minutes after the injection.
Best for
Best when the appetite stimulation is a feature (hard-gainer bulking), not a bug.
Read full pageKey difference
Both are ghrelin mimetics. GHRP-2 gives more GH per dose with milder hunger; GHRP-6 drives appetite hard. Neither is selective — both can nudge cortisol and prolactin at higher doses.
Evidence quality
GHRP-2
Limited human dataSmall pharmacology trials in the late 1990s and early 2000s established that GHRP-2 produces a robust GH pulse in healthy adults and short children with idiopathic short stature. Pralmorelin (the same molecule under a different name) has been used as a diagnostic agent for GH deficiency in Japan. No large long-term efficacy or safety trials in healthy adults exist.
GHRP-6
Limited human dataSmall short-term studies from the late 1990s confirmed that GHRP-6 raises GH in healthy adults and stimulates food intake. The appetite finding has been replicated. No large or long-term efficacy or safety trials exist; community use is the bulk of the chronic-dosing track record.
Not sure which one fits? Open both full pages and read the contraindications first — they are usually the deciding factor.