I use this in shade NW30. I find this to be the best concealer I have ever used, because it completely hides my under eye circles. It has also been my life saver on days when my skin just won't behave. When using a good concealer brush, this stuff is a dream to blend in which I have found other concealers don't do very well. It is quite tiny so it is great to carry in one's handbag, though that won't be necessary because it lasts very long.

Another reason why MAC is my number one makeup brand!