Microneedling is an innovative and effective treatment to cure scars, especially acne scars, stretch marks, wrinkles, and facial rejuvenation. Sanfe Selfly Derma Roller - 0.5mm helps in micro-needling of the facial skin at home. It has a nice curved design that's pretty easy to hold and use. The handle offers a firm grip and the roller head holds durable 540 microneedles. It gives a long-lasting effect in scar reduction treatments on any part of the body.