Any makeup artist will tell you: Brows are the secret to a polished look and wide-open gaze. Whether you were born with Lily Collins-style full arches or skinny caterpillars, there's a multitude of products to help you get the look you want. Here, we're going to show you how to use a brow pencil to define and fill in your brows. Brow pencils are the perfect tool for shaping precise arches, correcting overplucking, and covering obvious gaps. They've also got great staying power, even in hot and humid weather. We’re using, a waxy pencil that comes with a built-in spoolie brush. Looking for bolder definition? Watch our video about how to fill in brows with a brow powder. JOIN BIRCHBOX: birch.ly/1OLLiDr INSTAGRAM: www.Instagram.com/Birchbox FACEBOOK: www.Facebook.com/Birchbox