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Compare · GH secretagogue

GHRP-6 vs Ipamorelin

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

GHRP-6Ipamorelin
Evidence Preliminary human Preliminary human
ClassGH secretagogueGH secretagogue
SummaryAn 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.A selective growth-hormone-releasing peptide with early human safety data but a failed efficacy trial; never approved and banned in sport.
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GHRP-6

GHRP-6 is one of the oldest synthetic growth-hormone-releasing peptides, and its basic pharmacology in humans is genuinely well understood: it raises growth hormone (GH) and it makes people hungry. What is missing is the part that actually matters for the claims attached to it. For muscle growth,…

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Ipamorelin

Ipamorelin is a synthetic peptide that briefly raises growth hormone (GH) levels. It has been tested in humans, but the one trial that measured a real clinical outcome did not work, and it has never been approved for any use.

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