MK-677 (Ibutamoren) – Ghrelin Receptor Agonist for GH Research
MK-677 is a potent, orally active growth hormone secretagogue that mimics the action of the hormone ghrelin. By binding to the ghrelin receptor (GHSR) , it stimulates the pituitary gland to release growth hormone (GH) and insulin-like growth factor 1 (IGF-1) . Unlike injectable GH, MK-677 increases natural GH pulsation without affecting cortisol levels. It is widely studied for its potential to enhance muscle mass, bone density, sleep quality, and metabolic function, as well as for treating growth hormone deficiency and age-related decline in GH levels. Buy MK 677 online.
Key Research Applications:
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GH/IGF-1 elevation research
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Muscle wasting and frailty studies
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Bone density and recovery models
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Sleep architecture and metabolic health



