<< I think Latisse is going to be considerably bigger than a $500M product in due course >>
My only concern regarding this product was the potential for pigmentation of the surrounding skin of the eyelids, commonly called "raccoon eyes" in the biz. As I just reported, thus far I have seen no evidence of this side effect.
Regarding the size of the market - Could you get 500,000 women (and a few men) worldwide over time to spend $1500/year for perceived beauty? No problema, IMO