There's a lot of trendy toothpastes out there. However, some of them might be causing more harm than good. Here are several toothpaste ingredients that are damaging your teeth.
"Hydroxyapatite is natural. It is a type of calcium that makes up bones and teeth," says Lai. "Nano-hydroxyapatite relates to the particle size. These are between 20 and 80 nanometers and are much ...
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