This powder is super unique! I use just the tiniest bit over the Vapour Organics foundation I bought and it lasts pretty much all day. I do find that it will mute the color of any bronzer or blush I apply underneath, so I usually go a little darker with the colors then lightly pat over with the powder.
You can't see it on your skin, it doesn't leave a sheen or anything-- it's just mattifying and softening, like a finishing powder should be. Love it!