What is MK 677?

Ibutamoren, often referred to by its research name MK-677, is often grouped together with SARMs, although technically it isn’t a SARM.

Rather, MK 677 is a ghrelin receptor agonist, and a growth hormone secretagogue, which means that it increases growth hormone secretion in users.

Effect

• Increased muscle mass
• Fat loss
• Improved sleep
• Improved hair and nails quality

Side Effects and Dangers

• Bloating and water retention
• Increased sugar levels
• Mood changes
• Increase in hunger
• Headache
• Reduced insulin sensitivity

Chemical Structure