The Smile Perfected™ whitening system will help you achieve a noticeably whiter, brighter smile in just 20 minutes with no sensitivity. The Prophy Plus whitening system begins with a professional cleaning by your favorite dentist. The complete cleaning provides the best possible conditions for the whitening process to be at its most effective to remove stains and whiten powerfully without sensitivity. Smile Perfected™ is a simple to use, effective technology, including a patented pre-filled whitening tray that fits comfortably and allows the person to comfortably relax the jaw while their teeth whiten comfortably. The tray applies a gentle layer of soft, pleasant tasting gel, specially formulated for maximum results without the sensitivity. The special formula includes an active ingredient activated using the Smile Perfected™ LED light to make 20 minutes all that is needed to achieve professional whitening results. After 20 minutes you will achieve a noticeably whiter, more beautiful smile, but the Smile Perfected™ complete system also provides a take-home maintenance whitening pen, to help rejuvenate your youthful, beautiful smile and extend your results until you are ready.