Spiroindoline sulfonamide, also known as MK-677, is a long-acting ghrelin receptor agonist and Human Growth Hormone stimulant. Ibutamoren, MK-677, L-163, 191, and Oratrope are some of the other names. MK-677 SARM is exclusively available for laboratory study. The terms of sale are in effect. This product is not intended for human consumption, medicinal, veterinary, or home usage.
















