Hydroxyapatite (HAP) toothpaste is a dental product that contains manufactured calcium phosphate. Calcium and phosphate are minerals that form 95% of tooth enamel and 70% of bones. NASA developed HAP ...

We don’t always have the answers, but we have some people on speed dial who do — which is why we present our FYI series, where we have experts explain if lip balm is actually bad, how often you should ...

Toothpaste is meant to keep bacteria at bay, but an inspection from the Food and Drug Administration found that water contaminated with dangerous bacteria was used to manufacture batches of ...