The word has been going around for quite some time now, but not all of us have been quite sure enough to actually put it to experiment. The simple answer is that purple toothpastes do work, but the ...

Sakyproral, a routine-first oral care brand focused on easy-to-keep daily habits, today unveiled an at-home teeth whitening ...

The reason purple toothpaste appears to work on yellowed teeth is the same reason purple shampoo works on brassy blonde hair - complementary color theory, not chemistry. Tannins from tea and coffee ...