Red light therapy is a form of low-level laser (light) therapy (LLLT). Think of it as like a healthy tanning bed. During a session, the light delivers wavelengths of natural red and near-infrared light. It’s like the wavelengths you get from sunlight without the harmful UV rays. The painless procedure penetrates the skin up to eight to 10 millimeters without producing heat. It improves cellular energy and metabolic processes. Red light therapy may also help with psoriasis, acne, wrinkles, burns and other skin issues.