C-1000 mg tablets with Rose Hips provide a natural and effective form of Vitamin C in a 1000 mg dose, which is 1667% of the Daily Value for adults and children over 12 years of age. Vitamin C is one of the best antioxidants for fighting free radicals. At 1000 mg, Vitamin C provides superior antioxidant support, plays an important role in supporting immune function, promotes iron absorption, is beneficial for the health of joints, promotes heart and circulatory health and is involved in collagen formation, which is important for healthy nails, skin and hair.