Conspiracy says squares signify whether ingredients are natural or chemical The theory is false - the squares are used in factories to seal the tubes properly READ MORE: Homemade toothpaste ...

“Purple toothpaste takes advantage of the color theory — complementary colors [like purple and yellow] on the color wheel cancel each other out.” This can create the optical illusion of ...

PopWhite is a two-part system that includes a primer (toothpaste) and a toner (mouthwash). The combo will leave your mouth feeling refreshed and clean, but the power is in the purple color.

If you buy something, we may earn an affiliate commission. We took a deep dive to pick out the best toothpaste on the market, because if you're like us, your oral hygiene routine likely hasn't ...

View past columns in the archives here. The toothpaste aisle can be overwhelming: Bold colors and bolder claims fill the shelves, as brands make appeals to authority aimed at adults (“four out of five ...