MK-2866, also known as Ostarine is a SARM.. It is one of the oldest and well-researched non-sterodial SARMs available. It is considered a very safe and mild substance which has interesting properties.
SARMs or Selective Androgen Receptor Modulators are compounds that resemble anabolic steroids but have reduced androgen properties. They are being researched as a safer alternative to androgenic anabolic steroids (AAS) in battling various medical conditions like muscle-wasting and bone loss.