I have never spend so much on a makeup item before, but I have to say, It was beyond worth it. Because I have 20 hours of class a week (including labs) that often require me to get less than 7 hours of sleep a night, I needed something that would make me look less like a zombie pre-nursing student and more like a functioning human being.
Enter the YSL Touche Eclat. The first time I tried it my sister was in the room with me and the only thing she could say was "wow." I looked like a completely different person. And by completely different I mean I looked like I had actually slept the night before! Now it has completely replaced my concealer. For my skin now I just use Aveeno lotion and swipe the touche eclat under my eyes & it works wonders. If you're on the fence about paying so much for a concealer and you suffer from dark circles I really really recommend it!
p.s. I bought the lightest shade (1) and even though my skin is as white as a sheet it matches perfectly.