The production of melanin on the face is related to genetic susceptibility, UV exposure, pregnancy, endocrine disorders, and cosmetics. For the removal of melanin deposits on the face, local treatment can use hydroquinone, whitening agents such as azelaic acid cream, shading agents such as benzyl salicylate ointment, and oral medications such as vitamin C, vitamin E, glutathione and tranexamic acid are recommended. If the melanin is more serious, you can also choose laser treatment, laser treatment technology is mature, fast results and high safety. Daily life pay more attention to sun protection, apply sunscreen, eat more food that can make the skin whiter and reduce pigmentation, vegetables and fruits including apples, kiwi, oranges, etc., and eat less food containing deep pigmentation, such as soy sauce vinegar, etc.