what on earth is Swiss Chems MK677 Ibutamoren? MK-677, often called ibutamoren or ibutamoren mesylate, can be a peptide that belongs to the growth hormone secretagogues group (GHSR). it really works by mimicking the action in the starvation hormone ghrelin. It binds to one of the growth hormone secretagogue receptors (GHSR) from the Mind, helping r