If there is one spot on the face that gives everything away, it's under the eyes. Stayed up late binge-watching House of Cards on Netflix? Dark circles. Had a few extra cocktails at happy hour? Puffiness. Got allergies that make you sneeze through the night? Red-rimmed eyes. But you can easily make all of yesterday's sins disappear with the right under-eye makeup application. We break down our best concealer hacks ahead, like why you should apply foundation first and the life-changing triangle trick.
