Premium equine fly spray offers quick knockdown and repellent for your horse! Absorbine’s first weatherproof, sweat-resistant formula provides up to 17 days of protection from biting and nuisance flies, mosquitoes, and gnats. Can be used on horses and ponies. UltraShield EX formula contains multiple sunscreens and coat conditioners, including aloe and lanolin, and is pleasantly scented with citronella.