VYLE · RESEARCH LIBRARY

Red light, skin texture & collagen

A closer look at the published evidence.

Authors: Lee SY et al. · 2007

Published in: Journal of Photochemistry and Photobiology B: Biology

Study design: Randomised, blinded, placebo-controlled, split-face study

What was tested?

The trial enrolled 76 people with facial wrinkles. Researchers compared 633 nm red LEDs, 830 nm near-infrared LEDs, both together, and a sham light. The study schedule lasted four weeks, with subsequent follow-up.

What did the researchers find?

Treated facial areas showed improvements in wrinkle measurements and elasticity. Tissue examinations also found more collagen and elastic fibres.

How to read the finding

The result concerns the wavelengths, facial devices and exposure conditions tested. It does not set a universal light dose or predict an individual result.

Original publication

Credit belongs to the named research authors and journal. This page is an independent VYLE summary.

View the original record on PubMed ↗

DOI: 10.1016/j.jphotobiol.2007.04.008 ↗

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