Aromatherapy is a form of
alternative medicine that uses volatile liquid plant materials, known as
essential oils (EOs), and other scented compounds from plants for the purpose of affecting a person's mood or health. Essential oils differ in chemical composition from other herbal products because the distillation process only recovers the lighter phytomolecules. For this reason essential oils are rich in
monoterpenes and
sesquiterpenes, as well as other
VOC substances (
esters, aromatic compounds, non-
terpene hydrocarbones, some organic
sulfides etc.).
See more at Wikipedia.org...