Red light therapy is studied in skincare under the name photobiomodulation. Unlike an ablative laser treatment, it does not remove skin tissue. Researchers examine skin texture, fine lines and cellular responses to light. Wavelength, intensity, treatment time and distance all matter when comparing protocols.
What have human studies found?
A randomized study in 137 women compared 660 nm red light with 590 nm amber light at the same dose. After ten sessions over four weeks, measured wrinkle volume around the eyes fell in both groups. Hydration and elasticity did not show a measurable improvement in that trial. One positive outcome does not establish every possible skin benefit.
Choosing a practical approach
For a facial mask, check the wavelengths and whether the routine is easy to maintain. A larger panel covers more skin but needs different positioning and distance. Higher intensity is not automatically better for the face. For pigment-sensitive skin, read our article about melasma. Start with how red light therapy works.
Scientific sources
- Mota et al. (2023): randomized split-face trial of 590 and 660 nm for periocular wrinkles.
- Randomized trial (2024) of red light alongside a cosmetic treatment for glabellar wrinkles.
The studied protocols and devices are not identical to every Cell Glow product. Individual results vary.
