"Originally native to China and the Far East, Mandarin is now commercially cultivated in Italy, Spain, Cyprus and the Middle East. It is thought that the name 'Mandarin' refers to the fruits popularity with the rulers of China - the Mandarins. Closer to home, Mandarins were successfully introduced to Southern Europe in the early 20th century and as they were available only through the winter months, became popular as British stocking fillers at Christmas. When the fruit is expressed, pungent and bitter-sweet fragranced essential oil is released from the peel. This essential oil can be used in aromatherapy to ease mental fatigue and lift the spirit. It is also an effective facial cleanser, working to open pores and remove dead skin cells. "