Pearl Drops Whitening Toothpaste Extra Strength with Fluoride helps get teeth their whitest and breath its freshest. Laboratory tests have shown that Pearl Drops Whitening Toothpaste Extra Strength with Fluoride is the most powerful Pearl Drops toothpaste ever made for cleaning tough stains. It helps whiten your teeth beautifully with a triple action whitening system. And it freshens your breath with a burst of minty flavor, for a clean, refreshing, tingling sensation.