Gluten free. With whitening. KnockOut with odor neutralizing technology helps destroy nasty odors and fight lingering food aftertaste (Based on in-vitro odor reduction results and descriptive sensory panel analysis following brushing teeth and tongue). Helps destroy nasty odors and fight lingering food aftertaste (Based on in-vitro odor reduction results and descriptive sensory panel analysis following brushing teeth and tongue)! Its unique formula, with odor neutralizing technology, helps destroy even the nastiest odors and keeps your breath fresh for hours! Fights cavities. Whitens teeth. Freshens breath. www.colgate.com/maxfresh. Save Water: Turning off your water while brushing your teeth can save up to 4 gallons of water each time you brush! www.colgate.com/savewater. Made in Mexico.