I just bought this product last night. Ive only used it twice and already can tell a tremendous amount of whitening difference. I think this works the best out of any whitening product that I have tried. Ive tried crest white strips, crest night...

I remember that I had tried this tooth whitening system a good while ago, but I also remember that the effects were not very noticeable. This kit takes much longer to use than similar products that are available, and the mouth wash is very unpleasant...

Too time consuming and didnt notice much difference. Did not live up to its claim,

The product claims 6 shades in three days. I have been using it for a week with no visible results. I do not smoke or drink coffee so my yellow stains are minimal, and this product still does not seem to have had any whitening effect. Bummer.