I’ve tried many different things my dentist has recommended in the past and not really seen much difference. I haven’t been to the dentist in a few years for financial reasons, so I wanted to give this powder a try. I have loved being able to feel and see a difference in my teeth. I still have some troublesome parts in some teeth but I think this powder is helping to keep those bad parts from getting worse and making other parts better. Even some stains have gone away, improving my smile!