A tiny piece of innovative tech wants to help you stay away from sun-induced skin cancer. Global beauty leader L’Oréal teamed up with prolific designer Yves Behar of fuseproject to create UV Sense, the first battery-free wearable electronic UV sensor. Set to be unveiled at the 2018 Consumer Electronics Show, this innovative technology collects and shares real-time data on individual UV exposure with a wearable so small and thin it fits on a fingernail.

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UV Sense is the second UV-related wearable product L’Oréal’s presented following the debut of their temporary tattoo-like My UV Patch last year. Like its predecessor, the UV-monitoring wearable is activated by UV rays and uses near-field communication to transmit information about exposure trends to a smartphone app. In response to user feedback about My UV Patch, UV Sense is smaller, reusable, and updated to automatically sync with the app with real-time data.

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At just nine millimeters in diameter and less than two millimeters thick, the tiny UV sensor is designed to fit on a thumbnail and can be worn for up to two weeks at a time. Users can reattach the sensor with a new adhesive. The technology can hold individual UV exposure data for up to three months. Instead of a battery, the technology is powered by the user’s smartphone. L’Oréal’s accompanying app shares information on sun-safety habits and personalized advance on how the user should adjust his or her sun exposure levels.

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Related: L’Oréal’s wearable patch changes color to warn against skin cancer

“Design and technology are inextricably linked, and as products become more personalized to individuals, both elements are integral to providing people with seamless experiences,” said Yves Behar, designer entrepreneur and founder of fuseproject. “By working with L’Oréal, we are able to pair deep expertise in beauty tech with an effective design that enhances consumers’ wellbeing without distracting from their everyday lives.” UV Sense will be available in the U.S. with limited stock through their La Roche-Posay brand this summer 2018. The global launch is slated for 2019.

+ La Roche-Posay

Images via L’Oréal