EquiGarlic Bugx is a natural insect repellent that works from the inside out, helping to keep bugs and insects away from your horse. As an added benefit, it helps keep pens fly-free, as the garlic scent in the horse's waste repels flies. Along with its repellent properties, EquiGarlic Bugx promotes a healthy gut, improves circulation, fights inflammation, and supports hydration, making it an all-around health booster for your horse.