I have a real Newbie question about Witch Hazel. Prior to wet shaving I had never used witch hazel, and I have to confess, I have no idea what its for. In reading over lots of posts among the boards I can see that most people use it after the final rinse, and before the aftershave balm or splash. If this question has been asked in a previous post, I apologize for asking it again, but what exactly is the purpose of the Witch Hazel? I always associated it with a type of face cleanser to reduce blackheads or acne. It seems like I may be off base here. Any help would be greatly appreciated.