Flygard Citromax has a natural water-based formula containing citriodiol for safe, long-lasting protection. Big value pack; ideal for times of high use. Contains the only natural HSE approved ingredients. Repels midges and all flying and biting insects. Application Shake well and spray liberally onto the horse, or apply with a cloth. If using for the first time, test on a small area of skin 24 hours before general use to establish suitability. Provides instant protection; apply twice daily.