Bacon flavor inside & out. Reduces tartar 87% with DentaShield for cleaner teeth (Compared to Chew Bones not containing DentaShield)! Contains 2 treatments. Treat your dog to better dental health! Hartz Crunch'n Clean Chew Bones have a tasty bacon flavor and block tartar formation with the power of DentaShield. DentaShield was invented by researchers at Indiana University's School of Dentistry, the same researchers who developed fluoride for you and me. Crunchy outside - Chewy inside. How does DentaShield work? The DentaShield ingredient coats your dog's teeth creating a barrier. The barrier blocks new tartar formation. Leaving your dog with cleaner teeth, longer. Visit our website: www.crunchnclean.com. Made in Taiwan.