People are buying these Crest white strips like crazy. They are in almost every store now. Do they work good, or is it the advertising that has made them so populair?

Well, we looked at what they put into their white strips and were amazed to find that they only use hydrogen peroxide and not carbamide peroxide- (the whitening agent that dentists and we use in our formula).
We tried Crest white strips and after 5 uses we saw a slight change in the color of our teeth. It worked barely, and we couldn't imagine a company so big that would make a product that was so populair to work so badly. Then we figured out why. If it works a little bit then it makes the consumer keep buying them one after another.
When you try Naturewhite's gel, just after the first time of use, anyone can see a dramatic difference in their tooth color right away. After the 10th time of use, they are completely white.

* http://www.naturewhite.com uses 16% and 22% carbamide peroxide gel.
*Crest White strips uses hydrogen peroxide and no Carbamide peroxide.

* http://www.naturewhite.com: results are after just the first time
*Crest White strips You have to use the entire box to get result

* http://www.naturewhite.com recommended time per treatment is 45 min.
*Crest White strips The entire night (around 8 hours).