Zonk It! 35 – Insect spray enriched with lanolin and aloe vera for sensitive skin. Protects horses against horn, face, horse flies, mosquitoes and gnats. Kills and controls lice, louse eggs, ticks and fleas (adults and larvae) on dogs for 35 days. Horses: Apply at rate of 2 fl oz per adult; repeat if washed or rain soaked. Reapply every 4 wks. Dogs: Spray and fluff to penetrate to the skin. Reapply every 35 days. Do not use on puppies under 12 wks old, cats or kittens. Contains 0.5% permethrin.