YK-11 is a real Selective Androgen Receptor Modulator (SARM), though it distinguishes itself through its unique structure and mechanism. This molecule is often compared to the steroid Anadrol in terms of its effects.

Touted Benefits

Muscle Growth: YK-11 facilitates anabolic activity in the muscle, fostering muscle growth via anabolism.

Strength Enhancement: Anecdotal reports suggest high strength improvements, including lifting poundage increases by up to 90%.

Bone Health: YK-11 positively impacts bone health, helping you recover from injuries and keeping bones strong for heavy lifts.

Mechanism of Action

YK-11 works by selectively binding to androgen receptors in muscle and bone tissue, theoretically encouraging anabolic activity in these areas. Intriguingly, YK-11 is also a myostatin inhibitor. Myostatin is a protein that inhibits muscle cell growth, and thus, inhibiting myostatin supports enhanced muscle growth. It’s the only anabolic myostatin inhibitor we’ve seen on the market that’s scientifically proven.

Dosages

YK-11 doses range between 5mg and 10mg per day, but we have seen big bodybuilders go up to 20mg per day.

Possible Liver Toxicity

YK-11 has a methylated ester attached to it, basically methyl ester (somewhat like methyltest). As a result, it’s highly bioavailable orally, but with this benefit comes the potential liver toxic downside.

While liver toxicity is no more than any steroid out there, it is likely 80% less. We suggest the use of an over-thecounter organ liver support supplement like N2Guard.

“With 20mgs of YK-11, I had fast muscle gains, but when I went to around 50mgs YK-11, I found it to be like Anadrol. That includes the side effects. In low doses of 5-10mgs, you can compare YK-11 to T-bol with light D-bol, but high doses close to 50mgs resemble Anadrol…. Let me make it clear I DO NOT recommend over 20 mg per day. YK-11 is strong, so I suggest lower doses for a longer period of time, along with liver aids. While you can high dose it, do it five days on, two days off if you go into the 40-50mgs range ED.”

-Dylan Gemelli