Looking for an at-home teeth whitening treatment designed for sensitive teeth? Choose Crest 3DWhitestrips Sensitive White from the #1 dentist-recommended at-home teeth whitening brand. You can get a brighter, whiter smile in just 13 days with Crest 3DWhitestrips Sensitive White 30-minute teeth whitening treatment. It's specially formulated for sensitive teeth and has been accepted by the American Dental Association. Using the same enamel safe whitening ingredient as dentists, you can get 100% noticeably whiter teeth, guaranteed. Plus, a comfortable no-slip grip helps the whitening strips stay put, so you can talk and drink water while whitening your teeth. Simply apply for 30 minutes a day for 13 days. This pack includes 26 teeth whitening strips, 13 for your top teeth and 13for your bottom teeth, to be used over the course of 13 days.