Red Light Therapy (RLT) is a treatment that may help skin, muscle tissue, and other parts of your body heal. It exposes you to low levels of red or near-infrared light. Infrared light is a type of energy your eyes can't see, but your body can feel as heat. Red light is similar to infrared, but you can see it.
Red light therapy is also called low-level laser therapy. With red light therapy, you expose your skin to a laser with a red light. A part of your cells called mitochondria, sometimes called the "power generators" of your cells, soak it up and make more energy helping cells repair themselves and become healthier. This spurs healing in skin and muscle tissue. Red light therapy uses very low levels of heat and doesn't hurt or burn the skin. Red Light therapy is used in conjunction with other treatments for joint pain, back pain, and symptoms of neuropathy.