Essential oils are also known as volatile oils, ethereal oils, or aetherolea, or simply as the "oil of" the plant from which they were extracted, such as oil of clove. An oil is "essential" in the sense that it carries a distinctive scent, or essence, of the plant.
Essential oils are generally extracted by distillation. They are used in perfumes, cosmetics, soaps, and other products for flavoring food and drink, and for adding scents to incense and household cleaning products.
Essential oils have been used for thousands of years for their healing and purifying effects on the body. Their powerful anti-oxidant properties have extreme value by ancient doctors and medicine men that used them for aromatherapy, consumption, and skin application.