Vitamin C(Vitaminc), also known as ascorbic acid, is an important water-soluble vitamin, which is related to a variety of metabolism in the human body. Human body can not be synthesized and stored, must be ingested from the outside. It is found in fresh green leafy vegetables, oranges, pomelos and lemons. At normal doses, vitamin C inventories are 1500mg. Lack of vitamin C intake and malabsorption or increase demand can cause disease. Vitamin C can inhibit the increase of pigment, make freckles become pale, with whitening effect, can narrow pores, adjust skin texture. Vitamin C can inhibit the formation of melanin, once produce melanin, vitamin C also can make its become weak, please eat more vitamin C, from prevents spot began to protect the skin, vitamin C, besides has whitening effect and increase the role of collagen, adjust skin texture. Contain vitamin C cosmetics besides has whitening effect, still can contractive pore, adjust skin texture, after washing a face and some best spread before the bottom makeup, shrink pores.