Nutrifactor’s Nutra-C plus is a dietary supplement containing a great combination of two vital antioxidants, Vitamin C and Zinc, for healthy immune support ; Vitamin C is a key nutrient for the normal functioning of white blood cells in the body and it contributes to the maintenance of healthy immune system. It helps the body with collagen production, an important protein for cartilage, tendons, ligaments and blood vessels. It also helps the body to absorb and store iron ; Zinc is an essential mineral involved in the several metabolic processes in the body, it also contributes to the normal functioning of the immune system as well as the maintenance of healthy skin.DIRECTIONS : Take 1-2 tablets daily as a food supplement with meal or as directed by a healthcare professional. Do not exceed the recommended daily dose.