With DentaShield. Carpet safe. Reduces tartar by 83%. Scientifically proven to block tartar. Treated by irradiation. The American Veterinary Dental Society reports that 85% of all dogs over the age of 3 have some form of periodontal disease. The technology used in Hartz Dentist's Best with DentaShield is the first and only rawhide chew that blocks tartar formation with the power of hexametaphosphate. This ingredients was developed by researches at Indiana University's School of Dentistry, for dogs. Give your dog this tasty chew daily for maximum dental benefits. As with all chewing products, supervise your dog when giving this chew. How Does it Work? The DentaShield coating blocks the formation of tartar. Chewing this rawhide breaks down already existing plaque and tartar. Chewing this rawhide helps freshen your dog's breath. Scientifically proven to reduce tartar up to 83%. Visit our website: www.hartz.com. Made in China.