How does Blue Light Therapy Work?

The "blue" light used for this modality is narrow-bands of blue rays in the visible light spectrum of 415-420 nanometers. The light is very safe but requires the patient to use safety goggles throughout the standard 15-20 minute treatment. There is concern that prolonged exposure to the light without eye protection may result in eye irritation and/or cataracts. Wearing the proper goggles will prevent this. There is no sensation or even heat associated with the light therapy. The... more

BLU-U technology uses high-intensity, 405-420nm wavelength light. This is outside of the cancer-causing ultraviolet UV spectrum between 290-400nm. Intense pulse light laser (IPL) or photofacial utilizes 560-1200nm depending on which filter is used dictated by different skin types. Unfortunately, the clinical efficacy of blue light therapy as a stand alone therapy for acne is quite modest requiring 1-2x/week for several weeks. What has been shown to be more efficacious is blue light preceded... more