Independent reference & toolkit 100 compounds graded · Last reviewed June 2026

Compare · GH secretagogue

GHRP-2 vs GHRP-6

Both are gh secretagogue compounds. Here's how they line up on the evidence — graded the same way.

GHRP-2GHRP-6
Evidence 6/10 6/10
ClassGH secretagogueGH secretagogue
SummaryGHRP-2 (pralmorelin) provokes a growth hormone pulse. It is an approved diagnostic in Japan, but the human therapeutic and anti-aging evidence is small and old.An old growth-hormone-releasing peptide that reliably raises GH and appetite in humans, but whose marketed muscle, fat-loss, and disease claims lack solid trials.
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GHRP-2

GHRP-2 is one of those compounds with a real but narrow medical use that has been stretched far past what the evidence supports. In Japan it is an approved diagnostic tool: one dose triggers a measurable spike in growth hormone, which helps doctors check whether someone is making too little of it.…

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GHRP-6

GHRP-6 is one of the oldest lab-made peptides designed to nudge the body into releasing growth hormone. The basics of what it does in people are genuinely well understood: it raises growth hormone (GH, a hormone that helps the body grow and repair tissue), and it makes people hungry. What is…

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