Pure Encapsulations, Antioxidant Formula, 120 CapsulesSupplementation with antioxidants such as vitamins C and E has been growing rapidly in the past few years as research on harmful free radicals intensifies. Free radicals are atoms, ions, or molecules with one or more unpaired electrons that bind to and destroy cellular compounds. Dietary antioxidan milk thistle (Silybum marianum) extract 100 mg, n acetyl l cysteine (NAC) 100 mg, vitamin C (as ascorbyl palmitate) , vitamin C (as ascorbyl palmitate) 100