Origins of this oil date back to 1000 years used by Egyptians, North Americanâ??s. This oil is used mainly for the skin treatment which is said to cure itching, dandruff, oily skin, acne, etcâ?¦ It is also used in aromatherapy where it reduces anxiety and nervous tension. The high concentration of this oil may irritate the skin hence should be avoided during pregnancy. The high yield of this oil is extracted by the steam distillation process.