I've been trying to use this for a few months now, off and on of course. But whichever way I open the valve it always either gets too clogged to successfully "puff" delicately onto my hair, or just dumps large amounts and I get a noticeable white residue. It also does not eliminate the oils ANYWHERE near as well as conventional spray dry shampoo. The smell is nice, but that's the only thing going for it. I always try to walk the path of least chemicals, but this wasn't a winner.