Review (1/5): SOS!  Do not use this on your teeth - under any circumstances
I showed this to my dentist before I used it and he told me I was to send it back and never use it on my teeth. He said that sometimes you might see a product like this (albeit much better) in a dentist's office, but it can do tremendous damage to your teeth if not used by a professional and to either throw it out or send it back.