LGD-3303 like LG121071, was developed by Ligand Pharmaceuticals. The chemical structure of LGD-3303 resembles that of LGD-4033, another SARM developed by Ligand Pharmaceuticals.LGD 3303 is NOT Anamorelin. It is the most potent SARM we have seen personally to date! LGD 3303 – Most Anabolic SARMs powder? There has been a lot of confusion about LGD 3303 being the growth hormone …