What’s the difference between red light therapy and an infrared sauna?

Direct answer

Red light devices and infrared saunas use different formats and should not be treated as equivalent. LED devices deliver selected red or near-infrared wavelengths toward a positioned area without being designed primarily to heat the whole body; infrared saunas are heat-focused environments intended to raise body temperature and promote sweating. Compare each product using its own verified wavelength, output, temperature, and safety information.