I have a GOSH foundation brush and I seem to waste a lot of product using it, maybe it's the way I apply it!
I worry about that too, probably why I've never bothered with a foundation brush. I hate when you wash your make up brushes and have to see all the lovely blusher and eyeshadow going down the sink!http://emeraldgreen88.blogspot.com
I'm probably using it wrong but I can't recommend it, I don't think the finish was much different either!
I actually like the finish better when I use my fingers - it seemed to almost have stripes in in when I used the brush. Sigh!
Please leave a comment, I read them all!