Then I suggest that you don't use whitening skin care products, because whitening skin care products generally add chemicals such as lead and mercury, which is easy to make people dependent. Moreover, after using whitening cosmetics, the skin is particularly easy to dry. Do a good job in sun protection and eat more whitening foods, such as tomatoes. It is best to eat collagen. Studies show that the production of skin melanin is caused by tyrosinase, and peptides in collagen can inhibit the activity of tyrosinase. It can also promote the regeneration of skin cells, has a strong water storage function, and can deeply replenish water, whiten and moisturize. You can try Merrell's high-purity fish collagen peptide, which is high in purity and affordable. If the landlord is interested, go to official website to find out about it.