At first I adored this product. I used it as a brow bone and inner eye corner highlighter but found that by mid-day it was all but gone. I would reapply and within the next hour or so - it was gone again! I used it over eyelid primers, used it with regular skin primers, used it without any primers. Same results. Gone within hours.
So I switched to a different product altogether and came to realize that the Brow Duality was just not cutting it. Also I found that I was not utilizing both ends of the product, as the sparkly highlighter end was just too sparkly (albeit briefly). The Camille side of the product leans pink in color, which worked fine with my skin tone, but I can see how it might not with a lot of skin tones.
I'm rally sad this didn't work out for me, as I liked the premise behind it, but it just wasn't meant to be.