Or I'm going to give up and not use any. Consumers aren't perfectly rational. This isn't like toothpaste, where, despite being overwhelmed at the store, I still need to brush my teeth so ahhhhhh fuckit and just pick a toothpaste out of the 30 available. The alternative is I keep using Google search and think AI is stupid. Or just use Facebook's thing.

The frontier toothpaste is the one with bioglass 45S5. Especially if you have sensitive teeth or your teeth are prone to caries.

Nano-HAp is good, too