MK-677, also known as Ibutamoren, is a potent growth hormone secretagogue designed to naturally elevate Growth Hormone (GH) and IGF-1 levels. Unlike traditional GH injections, MK-677 stimulates the body’s own production by activating the ghrelin receptor pathway.
This results in improved muscle growth, enhanced recovery, better sleep quality, increased fat metabolism, and overall performance optimization. MK-677 is widely used for long-term lean mass gains, improved body composition, and anti-aging purposes due to its powerful growth hormone–boosting properties.

5 Benefits of MK-677

1. Increases Growth Hormone Levels
Naturally elevates GH and IGF-1, supporting muscle development, repair, and overall growth.

2. Promotes Lean Muscle Gain
Enhances protein synthesis and nutrient partitioning for steady, long-lasting lean mass increases.

3. Boosts Recovery & Repair
Speeds up healing and reduces muscle soreness, allowing more frequent and intense training sessions.

4. Improves Sleep Quality
Enhances deep sleep cycles, aiding recovery, hormone balance, and daytime performance.

5. Supports Fat Loss & Metabolism
Elevated GH levels improve metabolic rate, helping reduce body fat while preserving muscle.