NaturVet Herbal Flea Powder with Essential Oils for Dogs and Cats, 4 oz Powder , Made in USA The unique natural combination of Thyme, Lemongrass and Rosemary oil repels fleas while deodorizing and absorbing excessive skin oil, leaving pet with a fresh, pleasant fragrance. Can be used on any type of pet bedding, such as pillows, foam beds, blankets and kitty condos, sprinkle directly on top of bedding or inside, can be used as often as needed. Powder 4 fl. oz for external use on Dogs and Cats over the age of six weeks. Apply to pet's body and neck, around ears and on tail, can be used as often as needed. Will not interfere with other spot-on products. Active Ingredients: Thyme Oil, Lemongrass Oil and Rosemary. All NaturVet products are veterinarian formulated and manufactured in the USA in an FDA audited, cGMP compliant facility. 100% Satisfaction Guarantee.