Long lashes look beautiful, and they can even make you look younger too. Tired sagging eyelids can add years to your appearance. While longer lashes help your eyes appear more open and alert. If you're tired of using fake lashes, or applying more than your fair share of mascara, guess what? You can naturally stimulate eyelash growth with one simple thing. Eyelash serums have been proven to make any woman's eyelashes fuller, healthier, and longer. But not all serums are created equal.