Smile, we combined Colgate protection with natural mint you can taste. Colgate Zero Toothpaste is a responsibly made, vegan toothpaste with no artificial ingredients. This clear gel toothpaste is formulated with 0% artificial flavors, sweeteners, preservatives, and colors - so it's sugar and gluten free. Colgate Zero is a fluoride toothpaste that strengthens tooth enamel and provides clinically proven cavity protection. It's also a foaming toothpaste, for deep cleaning that fights bad breath.