(Edit: of course, this has been discontinued)
This review is for the GREY color. I use this on my bottom lashes and Chanel Bluish Black on my top lashes. If Chanel ever discontinues that color, I will use this on both. I am a "light summer," meaning that I have cool (pink) undertones and am very fair. I used to try to get the blackest black mascara I could find, since my lashes are blonde. However, I now realize that the grey is much more flattering than black, which is too dark. Brown, forget it, way too warm and makes my eyes look red and my skin look ruddy. I feel like this mascara on bottom, and the Chanel Bluish Black on top, makes my blue eyes pop and makes the ruddiness totally neutralize. It is really amazing. I found that the black in this formulation smudged, but I do not have the same issue with the grey, for whatever reason. The other great thing about this shade is that they only sell it in the $10 small travel sized version, so you can try it without spending a lot of money, and it travels well, needless to say. I am hoping MAC won't discontinue this, which they are prone to do! The grey is really fantastic.
Edit/Update: Of course, this has been discontinued. Try the limited edition Chanel grey mascara, until they stop selling it! There is also a mascara called Kiko, which sells a grey mascara. I really wish there were more options, though.
Update: still sad this is not on market.