Product description Why choose our Microneedle derma roller？ Microneedle derma rollers roll through the skin through titanium microneedles, creating many tiny points of contact that stimulate the production of collagen and elastin, allowing your skin to naturally recover and repair, making the skin smoother and younger. How to use the Derma Roller？ * Disinfect the skin roller in an alcohol solution before and after each use. * Wash and pat the skin dry. * Do not puncture the skin, but apply a slight pressure. * Scroll back and forth 4-5 times in the desired area. * Apply moisturizer or repair serum after use. * Use the microroller twice a week for best results. * If you use it frequently, please replace the micro needle every 1-2 months and store it in a plastic box. How to clean your Derma roller？ 1: Rinse the drum with warm water. 2: Disinfect with alcohol and let it air dry. 3: After cleaning the top roller, place it in the supplied memory. Package list： 1x1200mm Derma roller 1x600mm Derma roller 1x180mm Derma roller TIP： * Do not use body skin rollers（1200mm）such as eyes and lips on delicate skin. * Do not use for freash wounds. * If your skin is allergic to metal, please be careful. *Please refer to the instruction manual for the specific operation method.