What is Swiss Chems MK677 Ibutamoren? MK-677, also called ibutamoren or ibutamoren mesylate, is really a peptide that belongs to the growth hormone secretagogues group (GHSR). It works by mimicking the action of your hunger hormone ghrelin. It binds to at least one of The expansion hormone secretagogue receptors (GHSR) from the brain, aiding boost … Read More