How Does Red Light Therapy Work?

Red light therapy, also known as photobiomodulation, uses red and near-infrared light wavelengths to stimulate cellular processes and promote healing in the body.

When most people think of light, they think of the illumination that comes from a lamp or flashlight. But, light actually produces energy, and that energy is absorbed by cells when emitted at specific wavelengths.

Red and near infrared light are unique because they fall within a specific range of wavelengths (roughly 630–850 nanometers) that can penetrate the skin and reach deeper tissues, including muscles and joints. This light is absorbed by mitochondria, the tiny powerhouses within cells, which has profound effects. Studies show red light therapy increases ATP (energy) production, reduces oxidative stress, and stimulates healing and regeneration.

In essence, red and near infrared light helps to energize cells, which supports healing, recovery, and cellular function. No other light wavelengths have been shown to do this as effectively.