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

While the debate around fluoride continues, many are considering switching their fluoride toothpastes to alternatives that include the popular ingredient nano-hydroxyapatite. "As ingredient labels ...

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CNN — Colgate has announced a review of its toothpaste brand Darlie, which once featured a smiling White man in blackface, as companies around the world reconsider their use of racist stereotypes ...