[Azhia]

Mwuhahaa...
I really love BareEscentuals. I use it as my everyday, as well as performance, foundation. It breathes, you can customize colours (I tend to be darker in summer so I add more #2 with the #1.5), and 2nd most importantly, when you remove it, you can see it on the thing with which you used to remove (cotton ball, face towel, etc.). That to me means that it did not seep into my skin and enter my circulation, it came off when I asked it to.j
#1 important to me is that it does not contain preservatives, and mica does not harbour bacteria. 60% of what you put on your skin (whatEVER it is) is absorbed by it and enters your circulation (petroleum, tar, mineral oil, methyl- and propyl-parabens, etc. ICKY).
I believe it is also a finely milled mineral foundation. Other cheap imitations either contain talc (a big BOO to talc b/c it gets trapped in the pores and causes them to ENLARGE, who wants enlarged pores) and they are not as finely milled, making it an inferior product b/c it is not blendable.
Drawback to any mineral-based foundation is its ability to creep and settle into fine lines. ERGO, moisturize nicely before.
I always use a silicone-based primer (my favorite and highly recommended is the Velvet Skin Coat made by DHC) and in the wintertime, Aveda's Hydrating Mask (it is clear gel) for added moisture just before applying Bare Minerals. The fine layer it creates does not allow the minerals to seep into my (numerous) lines and also further prevents it from seeping into my skin.
I also use Bare Escentuals foundation on brides. It tends not to be too reflective for bridal photography and has real lasting power, especially when applied with the kabuki brush.
Eye shadows by Bare Escentuals...in the containers the colors are fabulous and amazing! I actually use a lot of their shadows for everyday use but I find that I need to really prime my eyelids b/c they are not as intensely pigmented as, say, a true pigment, like those made by Makeup Forever (dooooon't get me started on Makeup Forever b/c I love that line and can talk about it ad nauseum. what, too late?) So for everyday they're good, but you'd have to lay it on quite a bit thicker for performance. The mineral eyeliner they make is superb.
Are you sure you wanted to ask this question?? ;0)