Red Light Therapy Explained: Wavelengths & Dosing
How 660 nm and 850 nm work, and how to build an informed routine.
1.Understand Wavelengths
Red light around 630–660 nm and near-infrared light around 810–850 nm are common configurations.
2.Compare Output Carefully
Review treatment area, LED configuration, timer controls and irradiance claims on a like-for-like basis.
3.Build a Routine
Follow manufacturer guidance, start conservatively and track how your skin responds.