These tablets contain 1000mg of Vitamin C and are specially formulated to provide a gradual release in the body over a 2-6 hour period, and preferably should not be sucked. Vitamin C helps to maintain the normal function of the immune system during and after intense physical exercise while contributing to normal energy production. It also plays a role in normal collagen formation for bone, cartilage, gum, teeth and skin health. Vitamin C contributes to normal psychological function and that of the nervous system. CONTAINS NO added sugar, salt, starch, lactose, gluten, live yeasts, flavourings, colourings or preservatives.