Red Light Therapy Guide
How long should a red light therapy session be?
Independent guideCurrent product researchSources in context
Session length depends on the device and protocol. A number of minutes by itself says little because output, distance, wavelength, and treatment area affect exposure.
Start with the device protocol
A home device should provide instructions for treatment distance and duration. Use those instructions as the practical starting point.
Time is part of dose
Irradiance describes power over an area. Treatment time helps determine delivered energy. Two devices used for the same number of minutes can create different exposures.
Research protocols are specific
When a study reports a result, wavelength, dose, timing, target area, and participant population all matter.