this review title is: false claims in my opinion and the content is: it does not do what the video showed it takes a very long time to get a speck of stain off it would take a day to do what the video shows also the direct pressure required could possibly damage teeth i think i ll stay with the dental hygienist and whitening strips in between.there are other information for this review, one is this reviewer did purchase it and the other is 0 people think this review is helpful.