The Fringe Light Therapy Neck and Chest Mask provides a safe solution for your fine lines, wrinkles, age spots, blemishes/acne and scarring - use this mask daily to soothe your skin with nature s most powerful healing gift - light. This mask combines 3 light wavelengths of red light (630nm), near infrared light (830nm) and blue light (415nm) while being Emf free.