GREEN BAY, Wis. (WBAY) - Hair and toothpaste sound like a sickening combination. But Brad has details on how they are protecting your teeth in his 3 Brilliant Minutes.

You’ll likely see both hydroxyapatite and nano-hydroxyapatite on ingredient lists. Both are biocompatible minerals to what’s found in your teeth and bones, but nano means it’s at a smaller particle ...