At-home red light therapy devices like LED face masks seem to be everywhere. We tapped dermatologists to explain whether they're truly worth your time and money.

Skin Tone: “Red light therapy promotes healthy circulation and supports melanin balance, helping to even out discoloration ...

Earlier, and perhaps more basic, LED masks usually provide just one primary colour treatment mode, such as red or blue, ...

The palm-sized, battery-powered Helight Sleep emits pure red light that slowly fades to dark, helping you doze off. Contributor Scouted selects products independently. If you purchase something ...

The wavelength is what determines light’s color, and these LEDs are amber (605-nanometer wavelength), light red (630 nm), deep red (680 nm), and near infrared (855 nm).

Dark mode is a specific setting on a mobile device, tablet, laptop or computer, that changes the default, white or light, screen background to a darker colour (typically dark grey or black).