Look Crisp Every Day of September, Thanks to These Beauty Must Haves

I can't gush enough about just how good the cold metal applicator of Darphin's Ideal Resource Anti-Dark Circle Eye Illuminator ($60) feels on my ever-puffy under-eyes. The tube contains a flesh-colored illuminating cream that also has skin care benefits, like brightening vitamin C. I swirl the cooling tip over my skin, back and forth, which is meant to mimic a beautician's fingertips. This is a product I will be keeping in my backpack for on-the-go touch-ups!

— LL