For use in Canines, Felines, Birds, Rabbits, and Guinea Pigs only. Helps to support the normal daily functions of the thyroid Helps purify unwanted buildup and toxins from the thyroid Help supports normal balance of the thyroid gland TYD works slowly over a period of time which allows the animal's own immune system to help balance the thyroid gland. TYD is an herbal blend designed to help support the body's ability to keep a healthy balance to the thyroid. TYD is an Animal Health Product for dogs, cats, birds, and small animals, made with the highest quality herbs available, pressed only one time to ensure the best potency for your pet. Each bottle comes with instructions and a 1 cc/mL syringe.