So I want to whiten my teeth, and I came across a pretty good deal for Zoom! Teeth Whitening. I have been reading some reviews, but they are kind of vague. Has anyone had the Zoom! procedure? How long do you think it lasts? Some of the reviews said only a week.
I also read it was kinda painful, so I don't want to do that if it won't last. Any information would help me out!