My Dentist Commented!
I have used this product several times over the past few years and I love it.  For an over=the-counter, inexpensive product, they really do work. Of course it will sting some people, and some will find the strips annoying, but you get used to that stuff.  If you complete a whole box you will see a difference.  I went to a new dentist and he said "Have your whitened your teetH?" (I am sure he could tell because the back molars would be darker), I told him I used WhiteStrips and he said, "Yes, they are great!".  Use them, they work!  However, if you have veneers, or anything like that they do not work.  I do wish, however, that Crest had an actual tray made that would reach farther back teeth.  When you smile wide, you can see a color variation between where the strips reach and do not.
Rating: 5 stars