Allergan, the manufacturer of Latisse, recommends applying the medication at night, shortly before bed. If you apply Latisse one hour before you plan to go to sleep, the liquid solution will have more than enough time to dry and soak into your skin.
Although Latisse is designed for use at night, it’s okay to use it in the morning to a clean, makeup-free face. Make sure you apply Latisse before applying any cosmetics or skincare products. You should wait at least 15 minutes for Latisse to dry before applying any other products to the skin near your eyes or inserting contact lenses.