I struggle with melasma so this year I set out to find all sorts of sunblocks. As many of you know, applying sunblock only in the AM is not enough! You have to reapply every x minutes or so. The thought of applying my sunblock over my makeup did not sound like something I wanted to do. Enter this awesome product! It's easy to fit in my purse, so whenever I need to reapply its is easy and worth.