Cats and dogs become good hosts of external parasites, particularly in the rainy season. In the majority of cases, it is tick and flea infestation. Petvit tick Repellent powder for dogs and Cats repel/kill fleas, ticks and mosquitoes by contact. Our maximum strength formula repels ticks and fleas for up to 7 days. This dog powder for ticks and fleas is made with Natural Active Ingredients which contains a combination of certified natural essential oils which has some of nature's most powerful pest fighting ingredients. Petvit tick Repellent powder is pH Balanced, Toxin Free, Vegan, Paraben Free, Pet Friendly and Eco Friendly. effective and safe enough for routine pet baths. Safe when used as directed on dogs, puppies and cats of all breed.