What is micro-needling in skincare? Micro-needling is a process by which tiny punctures are created in the skin to trigger the skin to heal. Dermatologists and beauty salons have used this process for many years. One remarkable benefit of this procedure is the refined skin texture that is triggered by the boost in collagen production. In recent years, at-home micro-needling devices allow individuals to try this process at home. While relatively safe and with benefits that are quite well-documented, there are still precautions to take to ensure the safe use of micro-needling dermarollers at home. Keep your tools clean and use them at a controlled frequency.