precisely what is Swiss Chems MK677 Ibutamoren? MK-677, also called ibutamoren or ibutamoren mesylate, can be a peptide that belongs to the growth hormone secretagogues team (GHSR). It works by mimicking the motion on the hunger hormone ghrelin. It binds to 1 of the growth hormone secretagogue receptors (GHSR) in the brain, helping increase advance