Add Yahoo as a preferred source to see more of our stories on Google. How does purple toothpaste work? It uses color theory’s principle of complementary colors. Complementary colors are shades that ...

Many charcoal toothpastes promise whiter teeth, surface stain, and plaque removal. But are these promises real? How well does it really work? And more importantly, is it actually safe to use every day ...

Here's a fun fact: Toothpaste works to clean your teeth through the use of slightly abrasive substances, among other things like fluoride. Those little abrasive chemicals work to dislodge gross stuff ...

Nano-hydroxyapatite toothpaste is a fluoride-free alternative. This is who dentists say it's best for. Anna Gragert Senior Editor, Health and Home Anna Gragert (she/her/hers) was previously the ...

Brushing your teeth is one of the most basic habits in daily life. Most people believe that using any toothpaste is enough to keep their teeth healthy. But have you ever wondered if your toothpaste is ...