Question: what ingredients are in crest whitening strips?
Answer: Safety Information. This product should only be used as directed by your dentist. ...  Ingredients. Whitestrips: Purified water, Glycerin, Hydrogen Peroxide, Carbopol 956, Sodium Hydroxide, Socium Acid Pyrophosphate, Sodium Stannate, Sodium Saccharin. Directions. ...  Legal Disclaimer.