Latisse works well for eyebrows too. Use a tiny eyeliner brush (not the large clunky ones they enclose) and brush it on the areas you want more hair. Sometimes the hairs will grow longer than you want, so be prepared to trim them if needed.

We have found it works better to use Latisse in the morning rather than at night. At night, with rolling around on a pillow, sweating, etc., it tends to migrate more and cause hair growth in the wrong places.

See Dr. Irwin's article on Latisse Pros and Cons