YK11

YK-11 is an oral steroidal compound that inhibits myostatin, the protein that puts a natural brake on muscle growth. It also binds to androgen receptors, giving it an anabolic effect on top of the myostatin-blocking action. It is often grouped with SARMs commercially, but chemically it behaves more like a 17-alpha-alkylated steroid, which is why it carries steroid-level liver considerations.

As a guide and not medical advice, users commonly start around 10mg per day with food for the first two weeks, moving up to 20mg per day for the remaining cycle if it is well tolerated, with cycles generally kept to 6 to 8 weeks. It is not considered beginner-friendly, and a first-timer to performance compounds is usually better off with something milder. Always check bloodwork before, during, and after a cycle rather than following a fixed schedule blindly.

Yes to both. YK-11 is hepatotoxic, so a liver support product alongside it is treated as non-negotiable rather than optional. It also suppresses natural testosterone production, so PCT such as Nolvadex or Clomid is standard practice, usually starting a couple of days after the last dose, with the exact protocol adjusted to bloodwork.

Commonly reported issues include liver stress, suppressed natural testosterone, joint discomfort, and hair loss in those already prone to it. Sticking to the recommended dose and cycle length, running liver support throughout, and following up with PCT are the main ways users try to keep these in check. This is general information, not a substitute for medical advice or bloodwork monitoring.

Ostarine is a genuine SARM with a comparatively mild side effect profile, making it a common starting point. YK-11 sits closer to an oral steroid in practice, with a stronger anabolic punch but also more suppression and more liver load, which is why it tends to be reserved for users who already have cycle experience and monitoring in place.

Every box of this iMuscle SARMs stock carries a verification check-code so you can confirm it is genuine before use. Orders are dispatched from our UK warehouse via Royal Mail Tracked 24 in plain, discreet packaging, and paying before noon on a working day gets you same-day dispatch, with most UK addresses seeing delivery in 1 to 2 working days.