Shop-Frontline Spray 250mlFrontline Spray Flea & Tick Treatment (250ml) is a fast acting, long lasting, and waterproof solution designed to protect dogs and cats from fleas, ticks, and chewing lice. Formulated with the active ingredient fipronil (0. 29%), a broad spectrum insecticide, it disrupts the central nervous system of parasites, killing them on contact. This spray is safe for use on puppies and kittens, making it suitable for very young pets, as well as adult dogs and