Our high quality Vitamin C product offers superior antioxidant protection in a 1000 mg capsule. It also includes 30 mg of bioflavonoids, which help your body absorb and utilize Vitamin C (Healthnotes). Vitamin C is one of the best antioxidants for fighting free radicals. It also plays an important role in supporting immune function. Additional benefits of Vitamin C: supports heart and circulatory health, promotes iron absorption, supports healthy joints, and plays a role in collagen formation, which is beneficial for the health of skin, hair and nails.