Looking for an at-home teeth whitening treatment designed for sensitive teeth? Choose Crest 3DWhitestrips Sensitive from the #1 dentist-recommended at-home teeth whitening brand. You can get a brighter, whiter smile in just 14 days with Crest 3DWhitestrips Sensitive 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 you teeth. Simply apply for 30 minutes a day for 14 days. This pack includes 28 teeth whitening strips, 14 for your top teeth and 14 for your bottom teeth, to be used over the course of 2 weeks.