Black pepper oil is extracted from dried black peppercorns. As a pesticide active ingredient it is used for repelling mammalian pests such as dogs, cats, ground hogs, and squirrels. The first repellent end product containing this active ingredient is used in residential, non-food areas, such as attics, garages, and lawns. Oil of black pepper is commonly used in food, healing oils, and aromatherapy. Consequently, no adverse effects to humans or the environment are expected from the tiny amounts of this oil that will be used in pesticide products.