Made with real chicken; No toothbrush required; 28 servings. This enzymatic toothpaste combines 3 enzymes to break down problem causing debris in your dog's mouth. Amyloglucosidase (a-millo-glucose- ih-dase). Glucoseoxidase (glucose-oxi -dase) Lactoperoxidase (lacto-peroxi-dase). BarkBright.com. Want to learn more? If you have any questions, please call or text our team at 1-844-231-2275 or e-mail us at happy(at)barkbright.com. Made in the USA with ingredients from the USA and Finland.