That’s why the experts at PURINA developed PURINA DENTALIFE, an innovative dental chew that is scientifically proven to help scrub even those hard-to-reach back teeth, that are the most vulnerable to plaque and tartar build up. Our dental chews are designed for daily usage, and everyday chewing means more time cleaning Cereals* (62% extruded corn flour, 5% wheat flour); Glycerol; Minerals; Yeasts*; Meat and animal derivatives; Oils and fats.