Vitamin C is a redox agent, has a certain antioxidant effect, the main role of the following: 1, promote the biosynthesis of collagen, use in tissue damage can make wounds heal faster, promote the synthesis of collagen, prevent gum bleeding, promote the growth of teeth and bones, which is the more common role of vitamin C. 2, promote the metabolism of amino acids in tyrosine and tryptophan, prolong the body life, enhance the body’s resistance to stress and immunity to the external environment.3, improve the absorption of iron, calcium and folic acid, improve the metabolism of fats and lipids, especially cholesterol, and prevent cardiovascular diseases.4, promote the reduction of melanin deposition in the skin, thus reducing dark spots and freckles and making the skin fairer.5, vitamin C has other skin nourishing effects, such as the intake of vitamin C, for increasing collagen and improve the texture of the skin is of great help. Therefore, regular intake of vitamin C has great benefits for the body.