Bests & Worsts Reviews from Amazon

My dentist referred this product to me due to problems with canker sores as a result of sodium lauryl sulfate in my toothpaste. I received it, started using it, and developed canker sores again. I checked the ingredients and to my surprise, this toothpaste has sodium lauryl sulfate in it. I'm not sure how this product can brand itself as "natural toothpaste" and include ingredients that people like me have problems with.