The ability of melanocytes to synthesize melanin determines whether the skin is white or not. There are many melanocytes in human epidermal cells, which contain tyrosine, which can be oxidized into polysaccharides, and then through a series of metabolic processes, melanin is finally produced.

1, you should eat less food containing tyrosine, such as potatoes and sweet potatoes.

2, eat more foods containing vitamin C, such as jujube. Fresh dates, tomatoes, oranges, fresh green leafy vegetables, etc.

3. Foods rich in vitamin E include Chinese cabbage, cauliflower, sesame oil, sesame seeds, sunflower seeds and rapeseed oil.