If you use it when you feel like you are about to get acne, it will not get worse. Also, if you use it on acne, it will heal faster without getting worse. It tightens pores and makes skin smooth, so I can't let it go. When I used 2 before, I didn't feel much effect, but I really liked the acne type. I think the acne type is more suitable for my skin than 2. I have sensitive skin, so sometimes I feel a little irritation, but it doesn't sting. I will repeat it again when it runs out.