Estée Lauder Perfectionist Pro Multi-Defence UV Fluid SPF 45
"Look, I know sunscreen isn't 'sexy.' But it is the one thing you can do now to help you feel sexy later, and the Estée Lauder Perfectionist Pro Multi-Defence UV Fluid SPF 45 ($45) feels like nothing on the skin, and actually hydrates better than most primers, which makes it perfect pre-makeup." — KC