The effect of eating tomatoes alone on skin whitening will not be obvious. Tomatoes are rich in vitamin C. Although vitamin C is good for skin whitening, its content does not reach the amount of skin whitening, and to make the skin white, not only supplemental vitamin C, other factors such as ultraviolet radiation, individual differences, genetic factors, drug factors can lead to darkening of the skin. To achieve the purpose of skin whitening, first of all, we should pay attention to sun protection, not only outdoors, but also indoors, and it is usually recommended to rub sunscreen every 2 hours outdoors and every 4 hours indoors; secondly, we can rub some skin care products with whitening ingredients, such as niacinamide, arbutin, superoxide dismutase, etc. There are also other clinical ways to make the skin whiter, such as import treatment, pulse laser, etc.