One is that they contain nano-hydroxyapatite (n-HA), a naturally ... Ever try brushing with tooth powder? It tends to be ...

"Hydroxyapatite is the natural crystal that our tooth is actually made out of ... which uses probiotics, pearl powder, clove, ...

The bits contain nano-hydroxyapatite, a dentist-approved ... Dr. Moldovan does recommend the use of toothpaste powder as a better alternative than tablets, for those who want to ditch the tube ...

Then again, yours truly uses toothpaste with nano-hydroxyapatite, which is touted as a non-toxic version of the same mineral that makes up teeth and bones. Skepticism abounds with that stuff ...