L’Oréal Teams Up With Designer Yves Béhar To Create a Wearable UV Sensor That Tracks Sun Exposure

French cosmetics company L’Oréal has partnered up with designer Yves Béhar to create a wearable UV sensor that tracks sun exposure.

The UV sensor is two millimetres thick and nine millimetres in diameter and is meant to be worn on the user's thumbnail, which should allow for the most accurate sunlight exposure reading. The information the UV sensor collects is transmitted to an app via Near Field Communication (NFC) – a wireless technology that works using magnetic field induction. The user can then track their sun exposure and receive warnings for when they need to seek shade. 

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