MK-677
MK-677 Product Description — Research Use Only
MK-677, also known as Ibutamoren, is a research compound studied as a non-peptide growth hormone secretagogue. It is not a peptide, but it is often grouped within peptide and research-compound catalogs because of its role in growth hormone signaling, ghrelin-receptor activity, IGF-1 pathway research, appetite signaling, sleep research, and body-composition markers.
Research on MK-677 has most commonly focused on growth hormone release, IGF-1 activity, ghrelin/GHSR receptor signaling, appetite response, sleep-quality research, recovery-related pathways, and body-composition markers. Published studies describe MK-677 as an orally active growth hormone secretagogue that can stimulate the GH/IGF-1 axis through ghrelin-receptor-related signaling.
MK-677 is commonly studied for:
Growth hormone signaling — how the body releases growth hormone
IGF-1 pathways — how GH signaling influences IGF-1-related activity
Ghrelin-receptor activity — how MK-677 interacts with hunger and GH-related receptor pathways
Appetite signaling — how hunger and food-intake pathways are regulated
Sleep research — how sleep quality and sleep-related patterns are studied
Recovery pathways — signals connected to repair, restoration, and tissue maintenance
Body-composition research — markers related to lean mass, fat mass, and energy balance
MK-677 is commonly studied because it acts as a growth hormone secretagogue, meaning it is researched for its ability to stimulate GH release rather than supply GH directly. Research has reported increases in GH and IGF-1 activity, and one study also investigated MK-677 for sleep-quality markers in humans.
For research use only. Not for human consumption, medical use, diagnostic use, or therapeutic application.