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This exposure-tracking pendant will help you stay safe in the sun.
It’s a similar idea as L’Oréal’s My Skin Track UV sensor, but the $299 (discounted to $199 at launch) Gem smart jewelry wearable from The90 is a more stylish alternative. Its sensors measure UVA and UVB exposure throughout the day and based on your skin profile it will tell you how much sun is safe to get and when to reapply sunscreen through an app.
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