Ibutamoren MK-677

MK-677 Tablets (Ibutamoren) Primary Function: Growth hormone stimulation, muscle preservation, recovery enhancement Research Use: GH/IGF-1 axis modulation, sarcopenia, sleep studies, body composition research Molecular Formula: C27H36N4O5S CAS Number: 159752-10-0 Synonyms: Ibutamoren, MK-677, MK677, Nutrobal Description: MK-677 (Ibutamoren) is an orally active, non-peptide growth hormone secretagogue that mimics the action of ghrelin by binding to the GHSR (growth hormone secretagogue receptor). It stimulates endogenous GH and IGF-1 release, leading to improvements in muscle mass, fat metabolism, sleep quality, and tissue regeneration. Unlike peptides, MK-677 is stable in tablet form and suitable for long-term GH-related studies. Mechanism of Action: Binds to ghrelin receptors in the hypothalamus and pituitary Increases pulsatile growth hormone secretion Elevates circulating IGF-1 levels Does not suppress natural hormone production or require injection Key Research Areas: Muscle