Review (1/5): Now I know what has happened to throat
I had been using the toothpaste for about two months and began having an extremely sore thoat and mouth. It hurt so bad that I couldn't eat. The doctor could not figure out what was wrong, and suggested that it would maybe go away. After two months I still had the problem, and I finally went on the internet and found out that many others have the same problem from this toothpaste. It does have cancer causing ingredients and peroxide, so I am really worried.
Yes it lightens your teeth by one to two shades, but at what cost?