A look at Colgate's spin on the age old practice of using charcoal to whiten teeth Taking a break from white, red and blue – shades typically found on toothpaste tubes, Colgate’s new variant of ...
Instead of the white foam most of us normally produce when brushing our teeth, activated charcoal toothpastes coat teeth (temporarily) in a dusky slurry. Yet despite their dark hues, many companies ...
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