"Hydroxyapatite is natural. It is a type of calcium that makes up bones and teeth," says Lai. "Nano-hydroxyapatite relates to ...

Anna Gragert (she/her/hers) was previously the lifestyle editor at HelloGiggles, deputy editor at So Yummy and senior lifestyle editor at Hunker. Over the past 10+ years, Anna has also written for the ...

Add Yahoo as a preferred source to see more of our stories on Google. If you're thinking about trying a nano-hydroxyapatite toothpaste but aren't sure if it's right for you, we spoke to dentists to ...