Before menstruation, I had purulent acne on my chin and acne on the cheek of my nose. I was so stressed out, so I consulted with them. They recommended 3 sessions, so I took the 2nd session. I'm definitely satisfied with the acne reduction. They say I can see the effect on my pores, but I don't know if there's a big effect on my pores..ㅜ It doesn't hurt. I can tolerate it haha