I'm a big fan of concealers but I find it really hard to find one that sinks into the skin, as many look rather obvious on the surface. I really liked the Origins Quick, Hide concealer as the consistency was very creamy and it gave lovely matte coverage. It comes in six shades and I opted for 03 Medium which was really good match with my light skintone (so you can go a little darker than you'd think). The concealer blended in well, and is applied via an applicator stick that's attached to the lid of the product. I dabbed it on my skin and then used a brush to lightly pat the colour in. Immediately my circles disappeared and the product was really easy to work with.
The coverage lasted all day, and I really appreciated how it didn't cake at all. It handled the sunshine well, and never made my skin look blotchy or congested. I've also tried wearing it on its own (I do go barefaced sometimes) and it worked great at covering imperfections. As its oil free I was happy to use it on the occasional spot( apply via a cotton stick so you don't infect it) and it didn't' aggravate the odd flare up of skin. It also doubled up as an eyeshadow base, keeping my colour locked down all day.
I'm a big fan of this concealer and would happily recommend it to people- and the price is pretty wallet friendly as well!