Xylitol, yes

Nano Hydroxypipate, no

Sourcing by buying single raw ingredients off the internet just like my personal batches for now. If I find bitcoiner sources I will consider switching.

I have a couple of stages of abrasiveness possible.

Stage 1 ingredients: Calcium Carbonate, Xylitol, Baking Soda, Sea Salt, and Kaolin Clay.

Stage 1 tastes like salt to me with no baking soda taste.

For people who cannot stand the taste of baking soda even a little or want a little more abrasive there will be a second option.

Stage 2 ingredients: Calcium Carbonate, Xylitol, Kaolin Clay, Sea Salt.

Both have a dental abrasiveness that is low enough to be safe for daily use.