Oral-B Anti-Plaque, Alcohol-free mouth rinse contains cetylpyridinium chloride, a clinically proven ingredient which inhibits plaque formulation. Used after brushing, it keeps working to reduce plaque build up by as much as 30% between brushings. It also contains fluoride to help prevent cavities by up to 40% more than brushing alone. Its great mint taste leaves your mouth feeling fresh and clean.