I have serious under eye circles so to say I've tried many different products for them is an understatement. I found out about this product from YT makeup guru TiffanyD who really likes it. I haven't really seen it working to decrease my circles yet, but it's concealing properties are phenomenal.
Okay lets go to pics:
It does a really good job of concealing my circles and brightening the area. Often I think it works well enough by itself without using anything else.
I don't think this would work too well with dark skin types though.