Crest 3D Whitestrips Professional Effects is designed to whiten like a professional-level teeth whitening treatment at home. This pack includes 48 teeth whitening strips (40 Professional Effects strips plus 8 bonus strips), with 20 treatments for your top teeth and 20 for your bottom teeth to be used over the course of 20 days. The Advanced Seal Technology provides a comfortable, no-slip grip that keeps the strips in place during application, allowing you to talk and even drink water while whitening your teeth.

This enamel-safe at-home teeth whitening kit will make your teeth 18 levels whiter in just 20 days. The strips use the same effective whitening ingredient that dentists use, making it the #1 dentist-recommended at-home teeth whitening brand. Simply apply Crest 3D Whitestrips Professional Effects for 45 minutes a day for 20 days. You'll see a whiter smile after 3 days, with full results in 20 days. The product comes with a 100% noticeably whiter smile guarantee.