A:Answer Yes, it can hurt sensitive teeth, because it’s a strong formula. But many people tolerate it fine with proper use.
If your teeth are already sensitive, expect some discomfort unless you adjust to smaller usage. If you wish to try we suggest , use less gel (don’t overfill trays), shorten wear time at first,use a sensitivity toothpaste (like potassium nitrate).and skip a day if you feel discomfort.
