I like wearing my tinted sunscreen as my only face base on my "light" makeup days, because it feels weightless and I forget I have it on. It actually gives a reasonable finish. The problem is, whether I powder over it or don't powder over it, blush deposits unevenly on top of it. Any suggestions to help this problem? Should I put a primer on first? Or a primer over it, but before powder? I really love the look of blush, but it bothers me when it doesn't lay down right.