Crest 3D Whitestrips 1-Hour Express at-home Teeth Whitening Kit 10 Treatments 12 Levels Whiter in 10 Days Box is distressed but sealed Expiration Date of 1/27/2027 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 noticeably whiter smile 100% 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. This pack includes 20 teeth whitening strips 10 for your top teeth and 10 for your bottom teeth to be used over the course of 10 days.*In a survey of over 500 dentists from Jan 12th-April 2023. (description exceeds maximum possible length)