This Review Title is Do not buy this! and the content is: This is THE absolute worst product I have ever used!  Not only did I not see any results whatsoever, the use of this item is extremely messy.  You will be way better off using a whitening toothpaste or whitening gel.  I find the reviews unbelievable.  This product is a joke..There are other information for this review, one is This reviewer did purchase it and the other is 3 people think this review is helpful.