Ibutamoren MK677

MK-677 is not a SARM in the strict sense, it is an oral growth hormone secretagogue. It mimics ghrelin and signals the pituitary to release more growth hormone and IGF-1, which is why users report deeper sleep, faster recovery between sessions, and a noticeably bigger appetite. It works around the clock rather than in a short spike like an injectable GH product.

As a guide, not medical advice, most people run 10mg once daily at night before bed, since drowsiness is common early on. Some increase to 20mg after a couple of weeks if it is well tolerated, but going past 25mg a day is generally seen as pointless since it does not add much extra benefit. Cycles are usually run for 12 to 16 weeks.

The appetite increase is the most obvious one, many people find they are hungry within an hour of a dose. Water retention and mild joint pain (from the extra growth hormone activity) are also commonly reported, along with a rise in blood sugar, so checking fasting glucose and HbA1c before and during use is sensible.

No. MK-677 does not suppress natural testosterone production and does not aromatise, so it does not carry the same PCT requirement as anabolic compounds. Some users still choose to pair it with testosterone or cardarine to offset any mild suppression from long-term use and to improve endurance, but this is a personal choice rather than a necessity.

It works for both. The extra growth hormone and appetite make it a strong addition to a bulking phase where more food and better recovery help you add size, but the improved sleep and recovery also make it useful in a lean or cutting phase where fatigue and hunger control are bigger issues.

Every box of Syncom Labs MK-677 we sell carries a verification code so you can confirm it is genuine before you take it. Orders are dispatched from the UK on Royal Mail Tracked 24 in plain, unbranded packaging, with same-day dispatch if you order before midday on a working day, and most UK customers see their parcel within 1 to 2 working days.