The natural essential oils and aromatic chemicals are very oldest and some of the most effective therapeutic agents that exist. These are derived from volatile aromatic compounds found in the plants and distilled from the flower, bark, seed, leaves or roots of plants. The oils can stimulate the regeneration of tissue and stimulate nerve cells and have been used against bacteria, fungi, viruses, balance mood, lift spirits and dispel negative emotions.
These find extensive application in food industry as flavoring, in the cosmetic industry for fragrances and in the pharmaceutical industry for its medicinal properties. Besides, the essential oils are used in aromatherapy, therapeutics, flavors and fine perfumery. As the oil is highly aromatic therefore, many of the benefits can be obtained by simply inhaling these.