Decrease level of sensitivity during whitening with desensitizing gels or toothpaste consisting of potassium nitrate or fluoride
https://martinvddt734.iamarrows.com/post-invisalign-whitening-completing-your-smile-transformation-1
Decrease level of sensitivity throughout whitening with desensitizing gels or toothpaste including potassium nitrate or fluoride, and follow rest days between sessions if required.