Need to quickly whiten your teeth at home? No matter what the occasion, all you need is 1 hour to remove years of teeth stains. Made by the #1 dentist-recommended at-home teeth whitening brand, Crest 3DWhitestrips 1-Hour Express will give you a 100% noticeably whiter smile, guaranteed. This enamel safe at-home teeth whitening treatment will make your smile 12 levels whiter in just 10 days. Plus, the Advanced Seal Technology’s comfortable, no-slip grip stays put, so you can talk and drink water and chat with friends even while whitening your teeth. Simply apply Crest 3DWhitestrips 1-Hour Express for 60 minutes a day for 10 days.