About this item

• Lasts 18 months and beyond
• Use once a day for 1 hour.
• Our whitest white for a multi-dimensional smile.
• Exclusive Flex Fit technology design stretches and molds to custom fit your unique smile.
• Advanced Seal Technology's no slip grip stays put so you can talk and drink water while whitening teeth. Note : Storing Crest 3D White Whitestrips in a refrigerator is fine, however, storing product in a freezer is not recommended