How can the skin dark yellow be conditioned to turn white

Generally, there are two reasons for dark yellow skin. One is congenital and the other is acquired. First, we usually pay attention to adjusting the schedule to prevent staying up late. Staying up late for a long time will make the skin dull and dull. Second, you can drink more juice rich in vitamin C, or drink more milk and soy milk. Third, you can insist on using masks or skin care products rich in whitening ingredients such as vitamin E, and pay attention to sunscreen in daily life.