LED light at specific wavelengths moved from professional treatment rooms into the at-home routine. What's behind it? A process called photobiomodulation.
What is photobiomodulation?
Photobiomodulation is the response of cells to light at specific wavelengths, in low doses and without heat. Unlike lasers that work by ablation, visible and near-infrared LEDs don't damage tissue: light is absorbed by cellular chromophores — among them cytochrome c oxidase in the mitochondria — and the cell responds to that energy. It's optics applied to skincare, studied for decades.
Which wavelengths matter?
- 415 nm (blue) — works at the surface; studied for its effect on the look of oily-prone skin.
- 590 nm (amber) — aimed at tone; supports the look of more even, radiant skin.
- 630–660 nm (red) — the most studied in photobiomodulation; supports the look of firmer, more even skin.
- 850 nm (near-infrared) — invisible to the eye; reaches deeper layers of the skin and complements red light.
What the evidence says
Some peer-reviewed references, for further reading:
- Avci P, et al. Low-level laser (light) therapy (LLLT) in skin: stimulating, healing, restoring. Semin Cutan Med Surg, 2013. PubMed
- Wunsch A, Matuschka K. A controlled trial to determine the efficacy of red and near-infrared light treatment… Photomed Laser Surg, 2014. DOI
- Barolet D. Light-emitting diodes (LEDs) in dermatology. Semin Cutan Med Surg, 2008. DOI
- Jagdeo J, et al. Light-emitting diodes in dermatology: a systematic review of randomized controlled trials. Lasers Surg Med, 2018. DOI
These studies evaluate photobiomodulation and its wavelengths in general, not a specific product. Results vary from person to person.
And at home
The LUZAURA Glow Mask brings the four wavelengths — 415, 590, 660 and 850 nm — together in 122 LEDs on a flexible design, with six light modes for a 10-to-20-minute ritual, three or four times a week. Device for cosmetic use at home; not intended to diagnose, treat, cure or prevent any disease.