12 whitening treatments: each with 1 upper and 1 lower strip. With advanced seal no slip technology. Removes years of stains, for a whiter, glamorous smile. 30 minutes daily for 12 days. Available at Target. Crest 3D White Shimmer White Whitestrips removes years of stains, for a whiter, glamorous smile. Start seeing results after only 3 days. (Crest 3D White Shimmer White Whitestrips uses the same great whitening treatments as offered with Crest 3D White Advanced Vivid but with 12 whitening treatments vs 14). Advanced seal technology provides a form fit, no slip grip that molds and adheres to your teeth for a better whitening experience. In fact, you can even drink water while wearing Whitestrips with advanced seal technology. 3 easy steps to a beautiful, whiter smile: 1. Peel. 2. Apply. 3. Reveal your whiter smile. Use once a day for 30 minutes. Satisfaction guaranteed: Crest 3D White Whitestrips provide you with a beautiful, whiter smile - guaranteed. To learn more about Crest 3D White or get special offers, go to 3DWhite.com. Visit www.3Dwhite.com.