This is the best concealer I have ever used!! I was skeptical at first because I have very dark purple under eye circles and have had no luck with concealers(or photogenic foundation) and thought I would just have to live with them. The color I chose was correcteur which is a light yellow flesh tone color which I think is suitable for most fair to medium skin tones. The first thing I noticed was how natural it looked, even when layered on trouble spots it still looks exactly like skin. You barely need any to see results and a light application is recommended to leave room for layering on trouble spots.The next thing I noticed was how much brighter and "awake" my eyes looked. This is probably due to the whole photoflex thing that I never really got with the foundation. It wore all day with a natural powdery finish and without settling into fine lines or caking. Plus it is oil free with a SPF 15 and comes in six shades! I would definetly recommend this to anyone who has trouble with dark circles like myself, at $20 its worth it!