Whitening Power For Bright Smiles. Key Features: ‣ Whitens Teeth Effectively Without Abrasion. ‣ Zinc Ions Combat Plaque And Prevent Tartar Buildup. ‣ Strengthens Enamel With Calcium Hydroxyapatite. ‣ Fresh Mint Flavor For Lasting Breath Freshness. ‣ Alcohol-free Formula Gentle On Gums.