Ligandrol is a SARM discovered by Ligand Pharmaceuticals. It is administered orally and is not liver toxic like most oral steroids are. It binds to the androgen receptor with an extremely high affinity and selectivity, and once it does this it exerts exceptional anabolic effects in muscle and bone. LGD-4033 has an anabolic/androgenic ratio of around 10:1 ratio. For the sake of comparison, the same ratio for pure testosterone is 1:1. That means the anabolic potential is 10 times stronger than testosterone.