ZOOM! Whitening System is an in-office whitening system that is safe, effective and fast. In a little over an hour, your smile may become 6-10 shades whiter. A light is used to activate a gel that gently penetrates the teeth to remove stains. If you are a candidate for tooth whitening, we offer you a choice between in-office whitening and take home whitening trays, for those who prefer to apply their professional level whitening gels themselves.