Have you used Crest White Strips?

Yes, I have tried several different teeth whitening products. I think the white stripes weaken your teeth, mine became very sensitive to the heat and cold. Besides, they taste horrible and take a long time to work. I found my personal favorite to be listerine's total care plus whitening to be the best. Not only are my teeth obveously whiter (yes it took several weeks, but well worth it) but they are also stronger too:) I definitely recommend the listerine over crest white strips.