K9 Advantix II Medium Dog is the veterinarian-recommended formula that helps defend your dog against five pests: fleas, ticks, mosquitoes, biting flies and lice. And unlike other treatments, K9 Advantix II kills and repels fleas, ticks and mosquitoes. K9 Advantix II topical treatment gets straight to work killing fleas on dogs within 12 hours of initial application. This formula stops existing flea infestations and prevents new ones by killing adult fleas on contact so they cant lay eggs and they dont have to bite your dog to die. Fleas, ticks, mosquitoes and other pests not only cause discomfort; they may also transmit disease. Support dogs with sensitive skin using Pet Protect Skin Health supplements. These soft chews provide key nutrients that help maintain the skin barrier and the moisture content of skin. These dog skin health soft chews also support a normal inflammatory response, which can help support sensitive skin. Pet Protect skin health so