I need help finding good concealer with full coverage that doesn't fade over time and doesn't seem to dry out. One that I could use under the eye also would be ideal since I have really dark circles and would be suing it for that and the occasional breakout.
I have pretty bad dark circles and after lots of search I found that Smashbox's High Definition Concealer really does the job! Just be sure not to use too much product--if you put too much on it just looks greasy.
I am exactly like you with my main focus of wanting my concealer to treat under eye circles along with the occasional breakout. I personally love the Makeup Forever Full Cover Concealer - it is my complete HG of makeup. It's completely sweat proof and waterproof. Another awesome suggestion would be the Tarte Maracuja Creaseless Concealer. Neither concealer was drying to me.
If you are near a Sephora, you could always take a trip in and try out a few samples.
Hope I was of assistance!