Description
What it is
The most selective growth hormone-releasing peptide ever developed for research — triggering GH release without affecting cortisol, prolactin, or appetite.
Why it’s studied
Unlike older secretagogues like GHRP-6, Ipamorelin produces clean, pulse-like GH release that closely mimics natural patterns — making it the baseline GH research peptide for protocols requiring selective stimulation.
Key research findings
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Selective GH release without cortisol or prolactin elevation (Raun et al., original Ipamorelin study)
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Pulse-like release pattern mimicking natural physiology
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No documented appetite or ghrelin-related side effects in research models
