L’Oreal just solved your sunburn problem. The beauty giant released a high-tech skin patch that monitors UV exposure and alerts wearers when it’s time to apply sunscreen or head for the shade. “My UV Patch,” created in partnership with PCH engineering firm, looks like any other temporary heart-shaped tattoo at first glance. But the patch contains a Band-Aid-like sensor with photosensitive dyes that fade when exposed to UV rays, The New York Times reports.
To assess your exposure to UV rays, you simply photograph the patch with your smartphone and upload it to an app (available on iOs and Android devices). The waterproof patch lasts five days, which is about the span of your beach vacation. It’s disposable, environmentally safe and can be worn on any exposed skin. (more…)