blends away when anything applied over it

I bought the yellow/green corrector, and although my experience with both corrector and primer is limited, I was less than impressed. Not only was it hard to get enough on the applicator, but there is no division of the colours, so its hard to only get the one that you want to use onto it, so I tended to mostly use my fingers. Once on my face, I found it was difficult to blend anything over it without moving it around to the point of uselessness. It could have been the concealer I put over it, but I would rather just use more concealer that I can build than use this underneath. It was one of the cheaper colour correctors, so it was worth a shot I guess, but I would not buy it again. I thought Physicians Formula would be a decent brand, but I was dissapointed.