WHAT COLOUR LED IS BEST FOR MY SKIN AND WHY? Many agree there are seven different colour LED light therapies to choose from, including red, blue, yellow, green, purple, cyan and white. That said ...

– Nov 21, 2020 British Columbia’s North Shore Rescue is the first volunteer ground search-and-rescue organization in the country to get the green light to use night-vision goggles.

Earlier, and perhaps more basic, LED masks usually provide just one primary colour treatment mode, such as red or blue, although this might be attributed to the fact that red light claims to have ...