Vitamin C or ascorbic acid is one of the most important nutrients in our diet. It strengthens the immune system, promotes the absorption of iron from food and is necessary for the growth, development and repair of all skin tissues. The antioxidant effect of vitamin C neutralizes free radicals responsible for oxidative stress in the skin, delays the signs of aging, stimulates collagen production, promotes wound healing and supports the maintenance of cartilage, bones and teeth.