The Neutrogena Light Therapy Acne Mask is a revolution in acne treatment. As the only home LED device that simultaneously treats your face with both blue and red visible lights, this dual action technology helps disrupt the acne cycle and delivers clearer, healthier skin. LED lights work by gently penetrating the skin at various depths to stimulate the skin’s physiology. Blue light targets acne-causing bacteria while red light reduces acne inflammation. Free of chemicals and UV light, the face mask won’t exert any harm to your facial skin or eyes. It is easy to use at home. After cleansing, put the mask on. Push the button and let it work for 10 minutes while you can sit back and relax or do any other gentle activities. It’s for daily use.