Nutracology Cimmunity Vitamin C Contains Vitamin C 1000MG, Vitamin D3, Zinc and citrus bioflavonoids The complementary antioxidants included in this formula bring Nutracology Vitamin C blend up to a whole new level of immune support. our tablets provide a daily dose of vitamin C, which is necessary for the production of collagen and is therefore also important for skin, bone, and joint health Fight off free radicals in your body with an antioxidant boost from Nutracology Vitamin C Vitamin C is an essential nutrient well known for its vital role in immune booster system function* It is a highly effective antioxidant that can protect the body’s structures from oxidative damage generated during normal metabolism* Vitamin C is also necessary for the production of collagen and is therefore important for skin, bone, and joint health* It is also needed for amino acid metabolism and the utilization of many nutrients, such as folic acid and iron