Farnam Endure Sweat-Resistant Fly Spray for Horses 32 oz is a broad-spectrum fly and tick repellent designed for hot, humid, sweaty conditions. The unique Repelock conditioner binds to the hair shaft to help provide long-lasting protection even when horses sweat, with rain-ready coverage for turnout, training, and competition.

Kills and repels flies, gnats, mosquitoes, ticks (including deer ticks), and lice with quick knockdown and up to 14 days of extended fly control. Water-based formula won’t leave a greasy residue. Apply by spray or wipe-on for flexible coverage, including face, legs, and sensitive areas.