Hexarelin vs GHRP-6

Hexarelin

The most potent GHRP per microgram — and the one that desensitises fastest. A short-cycle tool, not a long-term protocol, with a cortisol lift that Ipamorelin avoids.

Best for

Best for short, intense cycles where a maximal GH pulse matters and you accept fast desensitisation.

GHRP-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 appetite stimulation is wanted and you prefer a gentler potency.

Hexarelin

Multiple short clinical pharmacology studies from the 1990s — including the canonical Imbimbo and colleagues work — characterise the GH pulse, the cortisol/prolactin lift, and the desensitisation kinetics. The cardioprotective signal through CD36 is mostly animal data. No long-term outcome trials in healthy adults. Use it for the short-cycle pharmacology it was studied for; the chronic-use evidence base does not exist.

GHRP-6

Small 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.