Dermarolling, a form of microneedling, involves using a mini wheel covered with hundreds of tiny needles to gently prick the face. They look like mini torture devices but, trust us, work miracles for clearing acne scars, fading fine lines, and evening out skin toneโ€”when they are used properly, that is.

We spoke to two estheticiansโ€”Maria Angelica of the Cane + Austin Medi Spa and Kristyn Smith of Smith & Brit Boutique and Spaโ€”to break down everything you need to know about this tool, ahead.