Latisse (bimatoprost) Latisse (bimatoprost) can make your eyelashes longer and fuller. It's applied daily with an applicator to the base of the eyelashes. Takes about 1-2 months to see about 40% thicker eyelashes. Results only last while using the product. They go back to normal 2 months after stopping the product. You have to get it from a doctor's office. Make sure to ask about the side-effects.