540 needles derma roller micro needle skin drroller therapy microneedle dermaroller anti acne wrinkle removal

rolling instructions: 1. wash your hands and the area to be treated thoroughly.2. wipe the skin and your hands with anti-bacterial gel (you can skip this step if you are using needle lengths of less than 0.5mm). 3. if you are using numbing cream, follow the manufacturer's instructions for use. always remove the cream completely before rolling (you can use cotton pads soaked with alcohol to do this). 4. rinse the derma roller under running water for a few seconds. 5. apply skin care product, if using. 6.