precisely what is Swiss Chems MK677 Ibutamoren? MK-677, often called ibutamoren or ibutamoren mesylate, is a peptide that belongs to The expansion hormone secretagogues team (GHSR). It works by mimicking the motion in the hunger hormone ghrelin. It binds to at least one of The expansion hormone secretagogue receptors (GHSR) from the Mind, supportin