At Hartz, we love our pets and our products prove it! For over 90 years, Hartz has made pet products with love, for people like you who love their pets. Our passion for pets all began in 1926, when Max and Gustav Stern came to America with 5,000 singing canaries. Eventually they started selling food for the birds as well. Today, we take careful care of your pet with everything from Hartz UltraGuard flea and tick products, to our dog biscuits & cat treats to our full line of pet toys to round out our selection of pet supplies.