Bone is essentially invisible on me - applied, it's the colour of my skin, more or less. In that sense, I can use it to create a blank canvas and hide any lid discolorations and it's lovely as a blending out shade or a subtle, elegant brow bone highlight. But there are many, many shadows that perform all these functions and cost considerably less so I'll save my pennies to put toward more "necessary" Bobbi Brown shadows.
I got this in a free VIB points palette and I've fallen in love with this colour. It's a very deep matte brown with no traces of red. It is, quite simply, fabulous - makes for a daytime wearable smokey eye and works as a soft, shadowy liner as well and, of course, for defining a crease, it is also perfect. I will definitely be purchasing the full size of this. I actually wish I could purchase multiples of the little palette I got as it would be outstanding as stocking stuffers (Christmas is coming) or just to have multiples in various places (purse, gym bag, desk at work, etc.) I'd never have known about or really noticed this shadow had it not been for the lovely little "freebie" palette.