What do you do when your favorite singer is performing on a work night? Or when a weeknight date is going way too well for you to cut it short? Sometimes, when a once-in-a-lifetime opportunity presents itself, beauty sleep is not an option. Fatigue (or, honestly, that millennial burnout so prevalent in 2019) can give you some serious under-eye blues, but luckily, the right concealer can be your secret weapon. Whether your dark-circles are the aftermath of an all-nighter, hereditary, or the result of an overly acidic diet, put down the sunglasses (or don't) and try anything from our below list of the best concealers that will carry you through this year and beyond.