starine, also known as MK-2866, is a selective androgen receptor modulator (SARM) that is used in the treatment of muscle wasting and osteoporosis. It works by mimicking the effects of testosterone on the body, but it is much weaker than anabolic steroids. It is also not as effective at promoting muscle growth as other SARMs, such as LGD-4033.

One of the main advantages of Ostarine is that it does not have the same negative side effects as anabolic steroids. For example, it does not cause water retention or acne, and it does not suppress natural testosterone production.

Ostarine is typically taken orally, in the form of a capsule or tablet. The recommended dosage varies depending on the individual and the condition being treated, but it is usually taken at a dose of 1-3mg per day