USB Plug In Mini Handheld Acne Removal Machine Blue Light Therapy Acne Treatment Device Condition: Item Type: Acne Removal Machine Material: ABS Power Supply Mode: USB Plug-In Product Light Source: Blue Light Light Source Wavelength: 415-475nm Number of Lamp Beads: 4pcs Standard Voltage: 5V 1-3A Product Size: Approx. 4 x 5.7 x 1cm / 1.6 x 2.2 x 0.4in Use Cycle: 10-25 minutes/time; 2-3 times/day, 1 week is a course of treatment. Product Principle: This product has a very obvious effect on pimples, acne, acne, mild and moderate inflammatory acne, mainly through blue light irradiation to kill propionibacterium acnes causing inflammatory infection, and calm inflammation to achieve the purpose of removing acne. The mechanism of action is: by absorbing and combining the porphyrin produced by the bacillus acnes in the metabolic process, causing the death of the bacillus. This product has high blue light purity, can quickly and effectively treat inflammatory acne, has strong penetrability, does not damage the skin, and has no side effects. How e: 1. Clean and dry your face. 2. Plug in the power to turn on the device. 3. Put on the equipped goggles. 4. Irradiate the light source of the instrument to the acne area. 5. Keep the equipment still for 10 minutes. 6. Take off the instrument after ten minutes. 7. Repeat the previous steps to process other areas. 8. After use, apply the facial mask to achieve the best effect. Note:1. Please allow slight error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.