What is Swiss Chems MK677 Ibutamoren? MK-677, often known as ibutamoren or ibutamoren mesylate, is actually a peptide that belongs to The expansion hormone secretagogues group (GHSR). It works by mimicking the action in https://tessmpbf711618.ampblogs.com/what-on-earth-is-swiss-chems-mk677-ibutamoren-72006011