YES!  An effective fly/insect repellent spray for horses AND riders that WORKS!  Will not spook the horse

• Picaridin-based (DEET-Free, DEET-Alternative) Fly/Insect Repellent
• Infused with Vanillin (patent-pending formula) for added protection against insects
• 12-hr proven protection from mosquitoes, biting flies, chiggers, gnats, fleas and no-seeums
• Non-oily, non-greasy, non-sticky formula
• 20% Picaridin formula with moisturizers and light, fresh scent
• EPA registered formula for the horse and people
• Safe for all horse breeds, adults, children, pregnant/nursing women
• Efficient 10oz Mistosol spray bottle; Continuous spray (non-aerosol), sprays upside down, refillable, will not spook the horse
• Used with the Money Saving 8oz Refill bottle for use with the 10oz Mistosol bottles
• Made in the USA 

If you love your horse, you must protect them from those horrible biting and annoying flies. 

Zone Protects insect repellents repel biting flies, gnats, chiggers and no-seeums for 12-hours