Buzz-off Spray @ 5LBuzz off Spray @ 5L Buzz Off is a specially formulated fly repellent spray that provides reliable protection for dogs and horses against flies and other biting insects. This easy to use spray contains active ingredients, including Cypermethrin and Citronella Oil, which work together to create a barrier against pests while ensuring the comfort of your pet. With Buzz Off, you can enjoy outdoor activities with your animals without the distraction of