StudioKreativa/E+/Getty ImagesIf you watch a makeup tutorial online, you’ll quickly notice that they all end the same way: with the creator on camera dousing their face with a setting spray in order to lock in their makeup and make it last all day. It seems counterintuitive that spraying a liquid all over your face would somehow not cause your makeup to run but actually give it longevity. So, I asked some experts: Does makeup setting spray actually work? Or, have we all fallen victim to another good gimmick?Does setting spray actually work?Yes, it does... if you’re using the right one, says Je...

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