The Zoom Chairside Light-Activated Gel greatly accelerates and enhances the whitening process, and delivers the dramatic results you will love. Along with the all-new Whitening LED Accelerator, your teeth can become up to eight shades lighter in just 45 minutes! The gel and light work together gently to break up the stains on your teeth, while leaving the structure of your teeth unchanged. After just three 15-minute applications in one hour, you rinse and the treatment is complete, leaving you with a brighter, whiter smile.