This essential oil has a calming effect on the mind and body and is used in cases of frigidity and impotence. It has a wonderfully balancing and stimulating effect on the skin, to correct sebum production and is also used to stimulate hair growth. There are three main grades of Ylang, graded depending on the length of the distillation process. The first is called extra, then three more distillations called grades 1, 2, 3 and complete. Ylang III is the third part of the distillation process and is generally considered to have a heavier' scent than Ylang Extra.