As Winter approaches, my skin tends to lose it's luster. This is a common problem; it's a result of spending more time inside and the weather drying out skin. Because of this, I'm constantly searching for ways to brighten my face without looking like I have greasy--or worse, glittery--skin. Pixi's Brightening Primer does the trick. Since it goes on under your makeup, you completely avoid shininess and just look like you're glowing. It doesn't look obvious and chances are you'll get tons of questions about what you're doing to look so fab.
Though the product is $33, it's a must-have for those days when skin just looks "blah".