When it comes to preventing dark circles, we've tried every trick in the book—including an arsenal of eye creams, gallons of water and plenty of sleep—but nothing seems to make them disappear completely. The way we see it: If you can't beat them, conceal them. So to make sure we're hiding all traces of tired eyes, we set out to find the best-selling under-eye concealer at Target. To our surprise, it's super affordable—like, less than the price of your morning coffee. So, the next time your eyes need a pick-me-up, skip the caffeine and reach for this $3 concealer. It'll actually do you good in more ways than one.