Citronella oil is one of the essential oils obtained from the leaves and stems of different species of Cymbopogon (lemongrass). The oil is used extensively as a source of perfumery chemicals such as citronellal, citronellol and geraniol. These chemicals find extensive use in soap, candles and incense, perfumery, cosmetic and flavouring industries throughout the world. Oil of citronella is a naturally occurring insect and animal repellent distilled from two grass varieties. It is yellow to brown and has a grassy/floral smell. Oil of citronella is a mixture of many components. The exact composition varies by grass variety. However, the main components are citronellol, citronellal, and geraniol. Oil of citronella is also commonly found in foods and beverages as a flavoring agent.