Not at all, it is very few that experience sensitivity, as our gel, is very gentle. Our teeth whitening kit leaves no permanent harm or irritations on the gums or in the mouth. Cmiile’s unique gel formula only removes surface and inner spots on the teeth.
From a person that hates flossing, this one is pretty good. I use it at max power, and its good at removing gunk between your teeth. My teeth feel cleaner af...