The young man or woman is a witness to youth, many people after puberty acne without trace, but there are many people either pox reluctant to leave, so easy to go, or to leave a large and small pits to mark the memorial. This has left endless worries for young men and women, originally flat and smooth face, become potholes, so that their own face charm greatly reduced. So what is the best solution for acne scars? Initially, skin grinding came into the vision of cosmetic surgeons, using a grinding machine to grind the epidermis of acne scars and then re-heal them, which can effectively reduce the acne scars, but this is still traumatic and requires hospitalization for large areas.