Zoom! is a bleaching process that lightens discoloration of enamel and dentin. You may have seen the Zoom! process used by me on ABC’s Extreme Makeover. The complete procedure takes less than an hour. The procedure begins with a preparation period followed as little as by 45 minutes of bleaching. (A cleaning is recommended prior to the actual Zoom! whitening session.) The Zoom! light activated whitening gel's active ingredient is Hydrogen Peroxide. As the Hydrogen Peroxide is broken down, oxygen enters the enamel and dentin, bleaching colored substances while the structure of the tooth is unchanged. The Zoom! light aids in activating the hydrogen peroxide and helps it penetrate the surface of the tooth. A study has shown that use of the Zoom! lamp increases the effectiveness of the Zoom! gel by 26% or more, giving an average improvement of up to eight shades!