Don't get me wrong...I am a big fan of the Therabreath products (although the only other I've tried is the mouth rinse). However, I think it is quite misleading that this product advertises a reduction in canker sores. Yes, it doesn't use the harsh detergent known as Sodium Lauryl Sulfate, which is always good thing. Instead, they use a different detergent, Sodium Lauroyl Sarcosinate, which after my experience with this toothpaste, is just as bad as the former SLS!
I had been using Rembrant's Canker Sore Sufferers toothpaste for months, and absolutely loved the stuff because I never got canker sores. I wanted to try the TheraBreath toothpaste after discovering the amazing mouth rinse, which I thought would work better in conjunction with this toothpaste than it would with my Rembrant.
Big mistake on my part. After a day of using the TheraBreath I had already developed 3 canker sores (yes, three!). I figured it was merely a coincidence, or had to do with what I was eating, or maybe because I was brushing too hard. Nope, nope, and nope. Why? Because when I used the TB toothpaste it stung my sores like hell, just like all the SLS toothpastes I used in the past did. This only made the sores grow. Finally, I went back to the Rembrant. Although I had huge sores still, the Rembrant didn't irritate or exacerbate the sores in any way.
After doing a quick Google search, I found that Sodium Lauroyl Sarcosinate actually causes canker sores as well. I think in order for this to be a good product, you need to be the kind of person who never gets canker sores to begin with. It would be great if TheraBreath got rid of all detergents in their toothpastes...until then, I would highly recommend Rembrant for Canker Sore Sufferers.