Virbac C.E.T. Enzymatic Oral Hygiene Chews for Dogs are a single-layer, 100% beef rawhide in an appealing poultry flavor. These vet-recommended chews feature the exclusive Dual Enzyme System to combine a natural antiseptic plus an abrasive texture that works with the dog’s chewing action to remove tartar and provide plaque control. They help keep teeth clean and freshen breath, even on days when brushing isn’t possible. Virbac C.E.T Enzymatic Oral Hygiene Chews should be given to dogs once a day for best results.