Applying sunscreen before you go out is usually not a problem these days, as they are formulated to work well underneath foundations. However, most of us face an issue with reapplication. Sunscreens photo-degenerate, which means they gradually lose the ability to protect against UV rays once it is exposed to light, making sunscreen re-application all the more important before you head out for lunch in the strong mid-day sun.
This is where these handy sunscreen mists come in. They are spray-on, making it easy to apply sunscreen over your makeup without ruining it, and some of them even offer other benefits like skin soothing or hydration.