Perfect solution
I’ve tried a few toothpastes that had environmentally friendly ingredients, but they still showed up in plastic tubes. I was about to try the tablets when I spotted this, and I love it, Note that if you wouldn’t share your toothbrush with the person you share your bathroom with, you won’t want to share this either, so get each person their own jar. But it’s the perfect solution for me and it performs just as well as the name-brand product my hygienist recommended years ago. (I don’t want to plug that brand and don’t know how to describe it, but it does a good job of fighting staining.)