The Zoom! In-Office Whitening System uses proprietary technology to whiten your teeth an average of eight shades* in a little over an hour while you relax at your dentist’s office. It’s ideal for anyone who wants immediate results. The Zoom! Take-Home Whitening System uses a revolutionary patent-pending gel to whiten your teeth an average of six shades in three nights. * And you may go even lighter with additional applications. Start on Friday and by Monday you’ll have a whole new smile.