Newsletter Sign Up Subscribe HowStuffWorks.com is a website that explains thousands of topics from teeth whitening to rocket science! In this article here, How Stuff Works dives into how teeth whitening works and its history. An estimated ten million Americans will spend a whopping 1.7 billion dollars on teeth whitening products...

Newsletter Sign Up Subscribe Myths About Teeth Whitening There are many myths about teeth whitening that we don't know whether to believe or not. Some myths include:  All teeth whitening products are the same - FALSE Teeth whiten evenly - FALSE Whitening toothpaste can bleach teeth - FALSE If you...