What is dermarolling? It’s a skincare technique that helps you achieve a natural glow by reducing the appearance of fine lines, acne scars, and dark spots. A derma roller is equipped with tiny needles that pierce the skin to help products penetrate deeper into your dermis. Unlike other treatments, dermarolling is considered non-invasive and is suitable for most skin types. However, you should avoid dermarolling if you have eczema, active acne, or cold sores.