Needles aren’t new to skincare, but usually they’re found safely in the hands of a trusted dermatologist. Enter the dermaroller: a stainless steel skincare tool for home use that—as the name suggests—is rolled across the skin, and is covered with hundreds of tiny needles, ranging in length from 0.1 to 0.5 mm. But why, you ask? It’s all in the name of microneedling.
