Citronella oil is made by steam distillation of Cymbopogon nardus. Ceylon citronella oil has a warm, citrusy, and wood scent, and has a pale to dark yellow color. The oil is used extensively as a source of perfumery chemicals such as citronellal, citronellol, and geraniol. Citronella oil is popularly used as an insect repellent and can be found in dozens of registered pesticide products, such as sprays, lotions, and candles. Citronella oil is one of the most common oils used in aromatherapy. It is said that as an aromatherapy oil, citronella can help treat and prevent colds, fevers, and headaches. As a massage oil, it may work in relieving pain in individuals suffering from arthritis. Citronella oil is also widely used in fragrances and personal care products. Also, due to its antiseptic properties, citronella oil is also used in soaps, household cleaners, and detergents.