Microneedling is a fashionable beauty treatment that uses many tiny needles on a microneedle roller to stimulate the skin, which can make more than 200,000 microscopic tubes in a very short time to lighten wrinkles and pigmentation, improve skin texture, tone down skin tone and pigmentation, improve skin texture and increase skin elasticity by stimulating collagen regeneration. Microneedle acne mark removal can be effective when performed once. However, if the skin acne marks are serious, generally need 3-5 times micro-needling treatment, the specific number of times need to be carried out, but also take into account the actual situation. In addition, because the skin’s metabolism is cyclical, although the micro-needle can stimulate the skin to new collagen, but after 28 days the skin will automatically renew. Therefore, the effect of microneedling on acne marks does not last long, about 3 months. Microneedling applies to more skin problems and is less targeted. If you have serious acne pits and enlarged pores that you are eager to improve, you can consider using an ablative fractional laser approach. It is recommended to choose a professional hospital and an experienced doctor.