Lower sensitivity throughout whitening with desensitizing gels or toothpaste including potassium nitrate or fluoride

https://devinjdan182.cavandoragh.org/post-invisalign-whitening-finishing-your-smile-transformation-2

Decrease level of sensitivity throughout whitening with desensitizing gels or toothpaste consisting of potassium nitrate or fluoride, and follow day of rest between sessions if required.