I think MAC comes out with a new makeup collection more often than I sanitize my shower, but hey, that's not a terrible thing, is it? The latest launch to catch my eye is the Mineralize Skinfinish Duo ($26.50). The compact contains finely milled, baked face powder; about 75% is matte, and the rest is softly shimmery.
The idea is that you can use the matte powder on most of your face, then highlight cheekbones with the light-reflecting, shimmery powder. Swirling a brush around the whole compact leads to a too-shiny look for me, but with a stippling brush, it's easy to apply only the matte or shimmery finish. I like how the matte powder seems to sink into my skin, leaving no telltale trace; it just looks like skin, which is ideal. The shimmer is definitely more dramatic, so use it sparingly. I like to use it under the eyes after applying concealer, because it reflects light and hides puffiness. To find out what doesn't work so well, read more.
The pigment particles are so fine that they blend into skin easily, but there's a drawback: Whenever I wear dark clothing with this powder, I inevitably look down and see a subtle glimmer on my hands and outfits. It's not super-flashy, but — well, you know I like to tell you these things.