LATISSE® is a popular eyelash enhancement solution that is used to grow your eyelashes naturally. With just one application a day, your eyelashes can grow longer, thicker, and darker in as little as 8 weeks. As the treatment progresses, you'll first begin to see changes in length. Then, gradually, you'll notice more thickness and darkness in your lashes. If you're satisfied with your results by week 8, don't stop there. Stick with the treatment. After week 16, you'll see the full effect of LATISSE® solution, and so will others.