Ipamorelin

Ipamorelin is a growth hormone-releasing peptide (GHRP) that tells your pituitary gland to produce more growth hormone. It's considered one of the "cleanest" options in its class because it specifically targets growth hormone without significantly affecting other hormones. **Why choose Ipamorelin?** Unlike other growth hormone peptides that can spike cortisol (stress hormone) or increase appetite dramatically, Ipamorelin is highly selective. It gives you the growth hormone boost without as many unwanted side effects. **What the research shows:** • Stimulates natural, pulsatile growth hormone release • Minimal impact on cortisol, prolactin, or appetite • May support lean muscle development and fat loss • Could improve sleep quality and recovery • Often combined with CJC-1295 for enhanced effects **How it works:** Ipamorelin mimics ghrelin (the "hunger hormone") but is much more selective. It binds to growth hormone secretagogue receptors in your pituitary, triggering GH release in a pattern similar to your body's natural rhythms. **Typical use:** Injected subcutaneously, often 2-3 times daily or before bed to enhance natural nighttime GH pulses. **Important to know:** Ipamorelin is banned by WADA and not FDA-approved. While research is promising, large-scale human clinical trials are limited. --- **Sources:** Raun K, et al. (1998) European Journal of Endocrinology | Anderson LL, et al. (2009) Journal of Pharmacology and Experimental Therapeutics

Published human data are essentially limited to single-dose PK/PD studies from the 1990s development program. No randomized trials demonstrate meaningful clinical benefit for muscle growth, body composition, or aging, and long-term safety of chronic secretagogue use is unknown. The peptide is not FDA approved.

Ipamorelin is a synthetic pentapeptide GH secretagogue that acts as a selective agonist at the ghrelin/growth hormone secretagogue receptor (GHS-R1a). In human PK studies it was administered by injection and produced dose-dependent GH pulses with rapid onset. Half-life values derive mainly from PK modeling literature and vary with assay and route.