Reveal a brilliantly whiter smile. Crest 3D White Luxe Whitestrips Professional Effects are like an eraser for your teeth. Remove the stains from the last 14 years in just 30 minutes a day. Their 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. Youll see a whiter smile after 3 days, and full results in 20 days. Achieve professional-level teeth whitening results without the professional price tag. And when you need some last-minute teeth whitening, 2 treatments of Crest 3D White Whitestrips 1 Hour Express are included so you can experience a whiter smile in just 1 hour for an unexpected event.