I tried many things over the year and found that most creams can work, if use properly.Here's the sercert.
1. how often do you wash your face per day?
2. How about your hair?
3. Do you pat dry your face? do rub
4. removing whiteheads by pressing directly down, not inward
5. do you have stress?
6. do you use sun block when you go outside? you should