What if I experience foaming or excessive saliva while using Whitestrips?
You're experiencing a natural reaction between your saliva and the whitening agent on our Whitestrips. Saliva increases whenever you place an object of any kind in your mouth. As saliva increases, it also reacts with the whitening agent and together they make foam.
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Discover MoreCrest Whitestrips Instructions: Safe & Easy Teeth Whitening