We use this!!! ParPar had some tarter buildup that I thought we would need a dental scheduled. I used it every other day for about 2 weeks and then I tried to scale her teeth...the tarter came right off in big flakes! I was really quite amazing.
The side note is that her breath was absolutely disgusting fish smell for a few hours after using it.
I can live with that knowing she'll be keeping her pretty smile.