Zonk It! is a powerful control against many types of insects, including horn, face, and horse flies, mosquitoes and gnats. Zonk It! also kills lice and louse eggs, ticks and fleas. Can be sprayed directly on the animal. Its 35-day residual protection means your premise is protected also. Water-based, with lanolin and aloe vera for sensitive skin, baby powder fragrance. Contains 0.5% permethrin. 32 oz. with sprayer. 32 ounce is pictured on right. 128 ounce (gallon) refill also available ($29.95).