Thinking about investing in an LED face mask? Here’s how it works and which dermatologist-approved, top-rated devices are actually worth buying.

Several pieces of evidence have suggested that blue light can inactivate various pathogenic bacteria. Previously in vitro and in vivo studies using blue light in the spectral range of 400–470 nm ...

If, like me, your skincare routine rarely stretches beyond a simple cleanser and a basic moisturizer or serum — but this is ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." With eight different wavelengths, including near-infrared, and a snug fit that ensures even contact ...

Researchers have designed and tested ‘human-centric’ LEDs that emit different wavelengths of blue light depending on whether it’s daytime or nighttime, reducing the disruptive effect artificial light ...

Select an option below to continue reading this premium story. Already a Honolulu Star-Advertiser subscriber? Log in now to continue reading. >> A large band gap means higher-energy photons, which in ...

You may know them by the acronym ROY G BIV. Together, they make the white light you see when the sun -- the main source of blue light-- is shining. Fluorescent and LED (light-emitting diode) light ...

LED therapy masks use specific light wavelengths for at-home skincare treatments. Red light is used to improve fine lines, while blue light targets acne-causing bacteria. Users should follow safety ...