Toothpaste isn’t just for your chompers anymore. As it turns out, this medicine cabinet staple is good for much more than preventing cavities, freshening breath, and shining up those pearly whites.

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 ...