I've tried a lot of different types of concealers and wanted to share one that I think is really good and the best I've found so far. It's called tarte MARACUJA CREASELESS CONCEALER. I can't imagine asking for more from a concealer but I guess there's always room for improvement like I bet after women stopped wearing corsets they thought that they couldn't ask for more from a non-corset type bra but I know they've gotten more comfortable over the years with stretchy softer fabric and stuff. But yeah, the concealer works really well for under eye circles too. It looks natural, stays all day if you don't touch it, really is creaseless and is reasonably priced. The shade I get is Fair but it comes in many shades of skin colors.
I wanted to show you a before shot, then an after concealer and powder shot, then an after concealer, powder and blush shot and last one of the actual product.
If you are prone to rashes or dark under-eye circles then maybe think about giving this a try. If you order it from here you can return it with the free return shipping form they provide if you are not satisfied with one of their products for any reason. Sometimes I use a concealer brush and sometimes I just use my finger. But, this is a good concealer brush if you don't know what I'm talking about.