I just had a laser skin beautification years ago, using a flying shield and a black doll, which is the kind mentioned in the big S Beauty King. They are specially designed to solve the problems of dark yellow skin, loose skin and large pores. Last night, they will replenish deep water and nourish the skin, and the effect is very obvious. It seems that many black-faced dolls in Jinan are fake. I have been to several, which is also a summary of experience. Personally, I feel that Han's black-faced doll has the best effect. You can also go to several hospitals and try. I hope it works for you!