Made with pure vegan ingredients, good on ya natural whitening toothpaste will keep your smile whiter and healthier thanks to a premium formula with hydroxyapatite. Experience the fresh taste of eucalyptus and mint. Now you can extend the life of your toothpaste by 3 times with the refills. 96% ingredients of natural origin. Hydroxyapatite: A form of calcium that makes up 97% of tooth enamel and 70% of its dentin. Also known as a natural alternative to fluoride, this top ingredient helps remineralize tooth enamel on irregular surfaces, whitens the appearance of teeth, prevents cavities, and prevents sensitivity.