Can Latisse (Bimatoprost) Lighten Brown Eyes?

Latisse cannot lighten dark colored eyes. There is a theoretical risk that it can darken hazel or green eyes, but the other way around is not possible. It must have been the lightening in the room.

This is the most common question (but usually regarding making the Iris darker) I hear and from the studies, I don't believe that they show anyone who has had iris color changes with applying Latisse to their lashes-- if this side effect occurs, it is very rare.

They saw these changes when the glaucoma medication was put directly into the eye.

There is no scientific evidence to support this, but I will say this: at a Latisse training I was at, one of the women from another office said this has happened to her. She said her light brown eyes had become more hazel-ish from using Latisse for a few years. I cannot say whether that is true or not, nor does any scientific evidence or any reports from Allergan support this idea, but that was her claim. Latisse has the ability to darken skin and darken tiny flecks in hazel eyes. Thus, it shouldn't also have the ability to do the complete opposite, but if you and this other woman have had that happen, maybe it's possible. Or maybe it's simply aging, clothes, lighting, etc.

There is no evidence to suggest that Latisse will change your eye color. Several million prescriptions for Latisse have been filled with no confirmed reports of iris pigmentation changes. It is considered a very rare side effect when this medication is used as a glaucoma medication when it is applied directly on the surface of eyes. Even then it made the iris darker, not lighter.