What Is SkinPen Microneedling? SkinPen is a medical-grade microneedling device designed to stimulate your skin’s natural healing process , also known as collagen induction therapy . It uses tiny, sterile needles to create controlled micro-injuries in the skin, which triggers your body to produce more collagen and elastin — two key components of firm, youthful, resilient skin. Unlike at-home dermarollers, SkinPen is FDA-cleared , highly precise, and performed in a professional