Want to your whiten teeth at home? Crest 3DWhitestrips Professional Effects + Supreme Bright Boost bonus offering is designed to whiten like a professional-level teeth whitening at-home. The Advanced Seal Technology s comfortable no-slip grip means the strips stay put until you take them off allowing you to talk and even drink water while whitening your teeth. Made by the 1 dentist-recommended at-home teeth whitening brand Crest 3DWhitestrips Professional Effects will give you a 100% noticeably whiter smile guaranteed. This enamel safe at-home teeth whitening kit will make your teeth up to 26 levels levels whiter. Simply apply Crest 3DWhitestrips Professional Effects for 45 minutes a day and Supreme Bright Boost for 60 minutes a day. This pack includes 54 teeth whitening strips 27 for your top teeth and 27 for your bottom teeth.