L'Oréal patch knows when you've had too much sun

The latest L'Oréal makeover doesn't involve makeup at all. The cosmetics giant is taking its first step into wearable technology.

L'Oréal's product isn't a bracelet, a watch or any kind of jewelry. Instead, the company worked with PCH, an Irish product engineering firm, to create "My UV Patch," which debuted at the International Consumer Electronics Show in Las Vegas this week.

The patch is a small (one inch in diameter) stretchable sensor that can be worn anywhere on exposed skin for up to five days. By hooking up your phone to the sensor, you can find out how much UV exposure you're receiving at any time of the day. Read more...