I find that Maybeline New York Dream mousse has great coverage to make your skin look flawless. The only drawbacks is you need to be extra careful blending in the concealer due to the thicker consistency.

This is my favorite drugstore concealer! Too bad it was discontinued ):

I gave this a high rating for effectiveness not because it works well at the job that I originally intended it to do which was to cover my undereye circles. Used as a concealer for those dark circles, I find that the shade that I bought, beige, is too orangey for my skintone and didn't do a very good job of concealing the darkness underneath my eyes. What this concealer does do an excellent job of is as an eyeshadow primer. Not only does it help camouflage the redness on my lids, my shadows go on brighter and stay crease free for an entire day. The formula is very silky and easy to blend. I would buy this again just to use as an eyeshadow primer. At $4.99 for 3g of product, it's a way better deal than some of the other popular eye shadow primers that are out there, and in my opinion, performs better as it provides a very smooth base for an easy blending of eyeshadows.