Clinically proven to reduce fine lines and wrinkles, age spots, sun damage, pigmentation and improve skin tone and texture with non-invasive light therapy. Dp Dermaceuticals L.E.D.? HAND is a lightweight, flexible and fully portable silicone mask that deliver rejuvenating red (630nm) light and also?hard to find in an at-home device?near-infrared (830nm) light, which penetrates deeper than topical skincare can.