Latisse® solution is the only FDA-approved treatment for hypotrichosis—inadequate or not enough eyelashes—that has been shown in clinical trials to grow lashes. You apply Latisse® to the base of your eyelashes every night and watch your eyelashes grow. In only four weeks, you may begin to see them, and by 16 weeks, they will be at full length. This is actual growth, not a thickening trick. It only takes a few seconds per day to apply.