PerioBrite™ promotes healthy teeth and gums by offering more than other ÒnaturalÓ toothpastes. It blends Lysine with key herbs, essential oils and the patented extract of Phytoplenolin¨ in a base that is both fluoride-free and preservative-free. Used regularly, this vegetarian, low abrasive toothpaste naturally whitens teeth and leaves breath fresh and clean for hours.