Tri-Tec 14 Fly Repellent Spray is a water-based formula designed for use on horses to control horse, house, stable, face, horn, and deer flies, along with gnats, mosquitoes, lice, and deer ticks. The 32 oz bottle comes ready to use with a trigger sprayer, and the liquid can be applied either as a spray over the body or wiped on with a cloth or sponge for sensitive areas like the face. The formula contains a conditioner that binds to the hair shaft, helping it stay active even when a horse sweats or is exposed to moisture, and it also leaves a shine on the coat. A sunscreen component is included to help shield the coat from UV exposure. Application calls for a clean, dry coat, so brushing or bathing beforehand is recommended. No mixing or assembly is required; the bottle is used as supplied.