There must be hormones. Personally, I am born with black and mixed skin, but I don't have acne very much. I used three boxes of whitening, and the effect was obvious in a week. I lost a lot of whitening and my pores disappeared. My skin is very delicate. risorius is all white and red. The effect is amazing, and people are reluctant to let go. Later, after using it for a long time, I found a lot of hair on my face, which became long and black. I went to the hospital to check my hormones. The doctor said there was nothing wrong with my hormones. It should be caused by what cosmetics I used or what medicine I took. I have stopped using it for two months now. My face is very dark, and Huang Yi has acne, so it's better to be useless.