Risks of Using Lumigan Instead of Latisse?

There is no difference between Lumigan and Latisse. They are the same product. Latisse is an Allergan product packaged with brushes to apply to your upper eyelid margin in order to achieve longer, thicker and darker eyelashes. Lumigan, the same product, is packaged by Allergan to be placed as an eyedrop in order to treat glaucoma. I think your doctors point was the following.....if you use Lumigan, in its eyedrop form, just to make your eyelashes grow, then you are exposing yourself to a much more

Both of these medications are the exact same down to the packaging of the bottles.  The difference is the labeling and the applicators supplied with Latisse.  As was stated above, they are both brimatoprost 0.03%.

Both of these medications are bimatoprost ophthalmic solution 0.03%. They are identical. The difference is the labeling, and the Latisse comes packaged with applicator brushes.