LED light has been shown to stimulate the production of collagen in the body which, in turn, helps to give skin a more full, tight look. By increasing the amount of collagen in the skin, LED light therapy can help to remove wrinkles, improve the appearance of age spots, minimize the appearance of scars, and help heal minor wounds. While this may sound like something out of science fiction, there is actually some well-documented science behind it. LEDs, or light emitting diodes, are able to transmit specific light frequencies. The frequencies help to stimulate the production of collagen and elastin.