This is one of the US brands of nanohydroxyapatite toothpaste. NanoHA is not yet something measured or noted with the “ADA seal” in the USA, but this is one of the most popular brands thus far. I have been unable to find information regarding the percentage of nanoHA in boka toothpastes, which leads me to prefer the company CariFree. CariFree is clear about its percentage of nHA (15%) and they also don’t use fear-based “toxic chemical” type marketing, so I prefer their CTx3 formulation over boka. The boka flavors are mild and I find the coco ginger one reminds me of chai tea.