Hair products don't make their way onto NW very often so you know when they do appear that I've got a rave and a half to share. A couple of months back I was sent the new Sebastian Pro Drynamic* to review. I've always liked the idea of dry shampoos and their ability to disguise second or third day hair, but the fact many of them come with an unwanted white cast for darker hair has always scared me off. On a particularly lazy day** I reached for this in my stash and here's what I thought...