Whiten your teeth from the inside out by adding a layer of Pearlys Daily Teeth-Whiten Foam every time you brush! Pearlys Daily Teeth-Whiten Foam also kills bacteria & helps keep your teeth & gums healthy & your breath fresh. Directions for use: Apply toothpaste to your toothbrush as normal, then apply a thin layer of Pearlys Daily Teeth Whiten Foam on top of your usual toothpaste. Brush for 2-4 minutes.