MK-677 (Ibutamoren)

Also known by its chemical name Ibutamoren Mesylate, is a powerful and popular growth hormone secretagogue. This means MK677 naturally stimulates the body to increase its own production of growth hormone (GH) and Insulin-like Growth Factor 1 (IGF-1) — two vital hormones responsible for regulating growth, metabolism, muscle development, and overall health.

Unlike synthetic injectable growth hormone, MK677 is taken orally and works by mimicking the hormone ghrelin. Ghrelin is naturally produced in the stomach and brain and plays a critical role in appetite regulation, energy balance, and stimulating hormone secretion from the pituitary gland.