Active Ingredients: Lemongrass Oil 4%, Cinnamon Oil 1%, Sesame Oil 1%, Castor Oil 0.5%. Inert Ingredients: Purified Water 91.3%, Vitamin E Acetate 1.8%, Polysorbate 20 0.4%. CAUTION: Keep out of reach of children and animals. Avoid contact with eyes, nose and mouth. Sensitivities can occur after using any flea or tick prevention program. If your pet shows signs of irritation, rinse them thoroughly, bathe your pet with mild soap and rinse again. If signs continue, consult a veterinarian immediately.