Want to whiten your teeth at home? Try Crest 3DWhitestrips Supreme Bright. This teeth whitening treatment provides professional-level whitening that removes over 25 years of stains, with a comfortable, no-slip whitening experience. The Advanced Seal Technology's 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. Choose Crest 3DWhitestrips Supreme Bright teeth whitening kit from the #1 dentist-recommended at-home teeth whitening brand. Using the same enamel safe whitening ingredient as dentists, get a 100% noticeably whiter smile, guaranteed. This at-home teeth whitening kit will make your smile 24 levels whiter in just 3 weeks. Simply apply Crest 3DWhitestrips Supreme Bright White for 60 minutes a day for 21 days. This pack includes 42 teeth whitening strips, 21 for your top teeth and 21 for your bottom teeth, to be used over the course of 21 days.