MK-677 - Sigma Pharmaceuticals

Ibutamoren’s structure, as a spiropiperidine, contributes to its high oral bioavailability, distinguishing it from earlier GH secretagogues requiring injections. This design ensures a longer half-life and sustained GH release with once-daily dosing, making it efficient and user-friendly. Bodybuilders often use doses of 10-25 mg daily in cycles lasting three to four months, with longer regimens not uncommon, particularly for muscle growth or physique enhancement​.

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For detailed information about MK-677 by Sigma Pharmaceuticals, consult with your doctor or healthcare professional.