NaturVet Herbal Flea Spray For Dogs & Cats repels fleas and flies naturally. Herbal Flea Spray is a natural combination of Rosemary and Cedar Oil, which helps to repel fleas and flies while deodorizing with a fresh herbal fragrance. NaturVet Herbal Flea Spray is a combination of natural oils which help to repel fleas and flies while deodorizing with a fresh herbal fragrance. This product can be used on pets and pet bedding. Herbal Flea Spray can be used as often as needed on puppies and kittens over the age of 6 weeks, and will not interfere with other spot-on flea treatments. Herbal Flea Spray is safe to be used on fabrics and pet bedding, such as pillows, foam beds and blankets. Although NaturVet designed Herbal Flea Spray to be non-staining, please test on a small piece of fabric before use.