"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 ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Mari Uyehara and Samantha Schoech For the holidays, we’ve added a slew of ...