Why does it make sense that a teeth whitener should have a neutral pH?
We feel it’s important for you to realize why a teeth whitening product should have a neutral pH. When whiteners are used they are placed in direct contact with teeth for a prolonged period of time, for a number of successive treatment days. Since the exposed surfaces of teeth are mineralized tissues (tooth enamel and dentin) an acidic environment (of pH 5.5 and below) can etch mineral content from the teeth, possibly resulting in tooth damage. The pH scale is a measure of a substance’s acidity or alkalinity. It ranges from 0 to 14 with the lower end of the scale representing an acidic environment. Use of a teeth whitening product having a neutral pH (closer to the value of 7) would seem most prudent.
