Red vs amber light for eye wrinkles, at the same dose

What they did

137 women had red light (660 nm) on one side of the face and amber light (590 nm) on the other, at the same dose of 3.8 J/cm². They had 10 sessions over four weeks.

A facial imaging system measured eye-area wrinkle volume. Skin hydration and elasticity were also measured, and quality of life was assessed with questionnaires.

What they found

Wrinkle volume fell by 31.6% on the red side and 29.9% on the amber side, roughly the same.

Neither colour improved hydration or elasticity. Quality-of-life scores improved.

What it cannot tell you

Both sides were treated, so there was no untreated or sham comparison. Without one, the trial cannot rule out general improvements unrelated to the light.

In short

At a low, home-like dose, red and amber light produced similar wrinkle changes around the eyes. Hydration and firmness did not change.

Masks with these wavelengths

None of the 10 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
• Silk’n LED Face Mask 100463 · 592 · 633 nm · Silk’n 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.