EQyss Grooming Products has created the perfect natural fly repellent using a gentle blend of four natural botanical oils. Hate the smell of citronella, barn barrier is citronella-free, barn barrier has been field study tested, and proven to repel horn flies, face flies, stable flies, and house flies. Barn barrier is also pH balanced, unlike other fly sprays, so it won't irritate horse's skin or damage coats, manes, or tails. Safe for use on bedding, bridles, blankets and other tack. Safe for horses, ponies, and foals. Safe and effective. Uses a combination of four natural repellents. Citronella-free. Clean fresh scent. Field study proven. Environmentally friendly. pH balanced. For use on bedding, bridles, blankets and other tack, horses, ponies and foals.