What is MK-677 (Ibutamoren)?
MK-677, also known as Ibutamoren, is a growth hormone secretagogue — a compound that encourages your body to naturally produce more growth hormone (GH) and insulin-like growth factor 1 (IGF-1). Unlike synthetic growth hormone injections, MK-677 stimulates your own system, making it an appealing option for athletes, bodybuilders, and biohackers.
Although commonly grouped with SARMs (Selective Androgen Receptor Modulators), MK-677 is not a SARM, but a unique compound with its own mechanism of action.
Benefits of MK-677
- Muscle Growth & Strength
- Increases lean muscle mass
- Boosts strength over time
- Ideal for bulking and recomp cycles
- Fat Loss
- Enhanced metabolism
- Promotes lipolysis (fat breakdown)
- Helps maintain muscle during fat loss
- Better Sleep
- Deepens REM sleep
- Improves sleep duration and quality
- Enhances recovery and cognitive performance
- Improved Skin, Hair & Nails
- Collagen production increases
- Anti-aging benefits from higher GH levels
- Increased Bone Density
- Supports joint health and bone strength
- Helpful for older adults or injury recovery
- Cognitive Enhancement
- May improve memory, mood, and focus
- GH and IGF-1 are linked to brain function
MK-677 Dosage
- Typical Dosage: 10–25 mg per day
- Best Time: Before bed to take advantage of sleep-enhancing benefits
- Cycle Duration: 8–16 weeks recommended
- Half-Life: Around 24 hours — only one dose per day needed
Pro Tip: Start low (10mg) and assess tolerance before increasing to higher doses.
Side Effects of MK-677
Though generally well-tolerated, some users report:
- Increased appetite (most common)
- Water retention
- Mild lethargy or tiredness
- Insulin resistance if used long-term without breaks
- Tingling or numbness in fingers (rare)
Note: These effects typically resolve post-cycle. Always consult a healthcare provider before starting.
Is MK-677 Legal?
MK-677 is not approved by the FDA for medical use, but it is legal to buy for research purposes in many countries. It is banned in professional sports by WADA, so athletes should be cautious.
Where to Buy MK-677
MK-677 is available from reputable research chemical vendors. Avoid black market or shady sites — always check for third-party lab testing and transparency.
Final Thoughts: Should You Use MK-677?
MK-677 offers a powerful way to boost growth hormone levels without injections. Whether you’re seeking enhanced recovery, better sleep, or serious muscle gains, Ibutamoren may be a valuable addition — but only if used responsibly.
It’s not a miracle drug, and should be part of a balanced routine including proper training, nutrition, and recovery.
