Add Hismile's Tooth Armour to your regular toothpaste or use on it's own to upgrade your oral care routine. Contains 6 actives, formulated together in 1 powerful serum: Hismile Tooth Armour Toothpaste Serum includes nano-hydroxyapatite, hydrated silica, xylitol, hyaluronic acid, niacinamide and zinc gluconate for the most complete brushing experience.