Latisse is an FDA-approved eyelash growth stimulator that can be obtained by prescription. This liquid medication is applied daily to the upper lash line using a small brush. Over 12-16 weeks, patients typically see their eyelashes growing longer, thicker and darker. Although the degree of improvement varies, most patients see a noticeable difference. Treatment needs to be continued to maintain results. Side effects are usually minimal, such as mild irritation or pigmentation in the skin where applied. It should not be used IN the eyes since it can darken the color of the iris. It is also the same medication that is used to treat glaucoma, so patients with any form of eye disease should check with their ophthalmologist before using it.