what on earth is Swiss Chems MK677 Ibutamoren? MK-677, also called ibutamoren or ibutamoren mesylate, is usually a peptide that belongs to the growth hormone secretagogues group (GHSR). It works by mimicking the motion in the starvation hormone ghrelin. It binds to one of the growth hormone secretagogue receptors (GHSR) during the brain, aiding boo