Latisse (generic: bimatoprost) is a prescription medication used to increase eyelash length, thickness, and darkness. Latisse belongs to a group of drugs called prostaglandins which have been used to treat glaucoma. People treated with this medication for glaucoma noticed longer, thicker, darker eyelash growth as a side effect. It works by increasing the amount and duration of eyelash hairs. 

This medication comes in liquid form and is applied once daily, at bedtime, to the skin of the upper eyelid.

Common side effects of Latisse include eye itching and redness, and skin darkening near the application site.