How about a black-faced doll? After the black-faced doll is made, the skin on the face will temporarily appear red, swollen and hot. This is to quickly absorb heat, cool down and replenish water. Wenzhou Ye Tongren Chinese medicine beauty experts suggest that it is best to use collagen mask or ice film for perfusion to promote epidermal growth. At the same time, it is not allowed to use high-concentration vitamin C, exfoliating, fruit acid, salicylic acid, alcohol and other irritating skin care products within one week. It is necessary to avoid strong sunlight and ultraviolet rays and do a good job in strengthening sun protection. It is best to use sunscreen with SPF30 above 30, and make up it every 2 hours when going out, and do a good job of physical sun protection. Skin allergy. A course of treatment needs 3-5 times for black-faced dolls, which greatly improves the melanin and dark yellow of the skin, makes the skin more delicate, whitening and firm, and the effect can be maintained for more than three years.