Vitamin C contributes to normal collagen formation for the normal function of blood vessels, bones, cartilage, gums, skin and teeth. Vitamin C also contributes to the normal function of the immune system and supports immune function during and after intense physical activity. Vitamin C additionally protects cells from oxidative damage and increases iron absorption. As Vitamin C is water soluble, it can be washed out of the body after a few hours. Natures Aid Time Release Vitamin C is specially coated to ensure slow release of the Vitamin C, therefore keeping it in the body for longer. This will optimise the benefits of Vitamin C supplementation.