I tried this Dior Concealer on at a department store before purchasing it. The salesclerk showed me how to blot it around my eyes. She used quite a bit more than I had ever used, so I think just knowing the amount I should be using made a big difference. This conceals the dark circles under my eyes very well, and I would give it a 10 for that. However, it does settle in the wrinkles around my eyes in a very short amount of time. I blot it several times while wearing it to smooth it out of my wrinkles. It doesn't really seem to hydrate the skin around my eyes either. I have started using a thick moisturizer for eyes before I apply the concealer. I use it to conceal various marks on my face, and it also works very well to cover them. It is a long lasting product. It is on the expensive side, but I think it is worth it to have a product that can actually conceal the dark circles under my eyes.