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 ...

As a blonde, I am religious about de-brassing my hair on a weekly basis,with purple toning shampoo treatments, which work by depositing purple pigments on the hair shaft and thereby counteracting ...

The shift from basic white or gel toothpastes to a variety of modern options has made the simple act of brushing teeth more complicated. The three popular types of toothpaste available today are white ...