what on earth is Swiss Chems MK677 Ibutamoren? MK-677, also referred to as ibutamoren or ibutamoren mesylate, is really a peptide that belongs to the growth hormone secretagogues group (GHSR). It works by mimicking the action with the starvation hormone ghrelin. It binds to one of The expansion hormone secretagogue receptors (GHSR) while in the Min