Red or amber light for eye-area wrinkles?
Both colours were tested at the same dose. The two colours gave similar wrinkle changes. Neither changed hydration or elasticity in this study.
The main finding. The two colours gave similar wrinkle changes. Neither changed hydration or elasticity in this study.
How the study worked
The 137 women received 660 nm red light on one side of the face and 590 nm amber on the other. Each side received 3.8 J/cm². There were ten sessions over four weeks.
Researchers measured wrinkle volume, hydration and elasticity. Participants also filled in quality-of-life questionnaires.
The results
Wrinkle volume fell by 31.6% on the red side and 29.9% on the amber side. Hydration and elasticity did not improve. Quality-of-life scores rose.
What is still unclear
Both sides received light. With no untreated or sham side, the study cannot rule out other reasons for the changes.
What to take from this
The two colours gave similar wrinkle changes. Neither changed hydration or elasticity in this study.
Devices that list similar light
None of the 5 masks in the comparison lists a wavelength in every band used here.
These masks list one of the bands, but not all:
- CurrentBody Skin LED Face Mask Series 3415 · 532 · 590 · 633 · 830 · 1072 nm · CurrentBody product page
- Dr. Renú SpectraLift Advanced465 · 530 · 630–660 · 850 nm · Dr. Renú product page
Matching a wavelength is not the same as matching the study. Dose, irradiance, session length and schedule also differ, and a mask’s reported output is not independently measured. See how dose works and home vs clinic doses.
We rewrote the source edition’s abstract summary in simpler language. It is not medical advice, and it does not mean any mask reproduces this study’s results. Read the original record on PubMed, and talk to a qualified clinician about your skin.