I'm also curious about this, but unfortunately I think that's where it will end for me in practice. Even if xylitol is effective, it seems the xylitol you'll get in any products (at least in the US) is going to be industrial byproduct from sketchy unregulated sources, just with greenwashed packaging. If there is a gum or rinse out there that is transparent and credible about their source of xylitol, and it's a source you can trust with your health, I'd love to try it out.

(I admit that you can probably say the same thing about any toothpaste you can buy in the US. But those have at least some additional benefits from regulation.)

The initial data on xylitol looks promising for reducing cavities! Particularly for stimulating saliva production (dry mouth is a large contributor to cavities risk) and as a sugar substitute that cavity-causing species can't digest into acid. I'm excited to see more research come out and compare it with our data.