The Deep Red At Home LED Mask features the deepest-colored bulbs on the market—a rich burgundy hue, unlike the orange-red tones commonly used in other devices. This deeper red light saturates the skin cells more effectively. The Deep Red has a high irradiance of 35mw/cm² at the 660-nanometer wavelength. This ensures optimal energy absorption into the skin, boosting collagen production and promoting cellular turnover with professional-grade efficiency. Finally, with 470 LEDs—more bulbs per square inch than most devices—The Deep Red ensures uniform coverage for consistent, all-over treatment. This non-invasive at home treatment helps to stimulate collagen production, reduce fine lines, improve circulation and calm inflammation. Tested by Monastery skincare experts, this professional tool is the strongest and safest tools you can use at-home to experience the benefits of professional-grade light therapy. 10" x 7" oval, FDA registered.