I have extremely sensitive teeth, to the point where eating anything on the right side of my mouth has become nearly impossible. I use a sensitivity toothpaste and, until I discovered this product in the store last week, I used Act Restoring mouthwash. I've been using this product for 4 days now and I have noticed some disturbing effects. First, after using it twice a day for 2 days, I noticed I had very thin layers of skin peeling from the insides of my cheeks shortly after rinsing with it. This has persisted, happening every time I've used it since that second day. Secondly, this mouthwash is having a strange effect on my tongue. Despite not having any alcohol in it, this rinse still burns quite a bit when using it. It almost numbs my tongue. The problem is now, after 4 days of use, that numb feeling continues all day and into the evening, when it's time to rinse again, thereby refreshing the sensation. This numb feeling has significantly decreased the flavor I get from my food. It's enough to make me want to stop using the product, despite the fact that it works better after just 4 days for reducing the pain I always have when eating. So now I have to choose between being able to painlessly eat food that doesn't taste good, or suffer through eating food that does taste good, like I've been doing for years. Very disappointed. Gave 2 stars just because it is working, but that's a BIG trade off. Can't recommend or not recommend, because that's a decision you have to make.