UltraShield EX is a sweat resistant, weatherproof insecticide and repellent. Provides up to 17 days protection. Kills and repels stable flies, horn flies, house flies, face flies, horse flies, deer flies, cluster flies, sciarid flies, mosquitoes, gnats, midges, punkies, no-see-ums, fleas, ticks, chiggers and lice. Water-based formula contains multiple sunscreens and coat conditioners, including aloe and lanolin.