My wife and I tried this after using another brand of whitening strips. To our dismay, it didn't whiten our teeth, it also has some mediocre performance cleaning them. At least with regular toothpastes, they clean at the same time freshen our breath as well. Waste of money. Like what the other reviewers state, their claim of false packaging may have some merit as the tube contains way less of toothpaste than what is stated. I suggest you stay away or try other brands...or better yet just go to your dentist if you really like to whiten your teeth.