Here's a derma roller with the best needle length to safely help reduce visible scars, wrinkles, and stretch marks With 540 1.5mm microneedles, you don't risk going too deep, while still getting deep enough to positively impact the skin's growth process Dermarollers are a revolutionary way to treat scars and improve skin. By penetrating the skin with microneedles, the derma roller stimulates the growth of new skin cells and connective tissue to increase firmness, improve skin's hydration, smooth out unevenness and refine the complexion. Microneedling is the perfect way to reduce wear and tear on the skin over time such as scars, wrinkles and stretch marks. The derma roller with microneedling can be used on the face and body as needed. Common areas of use are, for example, acne scars and increased beard growth. Reveals finer, smoother skin by increasing the production of skin cells, connective tissue and collagen Effectively reduces the visibility of scars, wrinkles and stretch marks Increases blood circulation to help promote hair growt