Essential oils are botanical extracts of various plant parts such as leaves, seeds, barks, stems, flowers, roots etc. They are natural extract of a plant form. They are natural aromatic compounds and are both beautiful and powerfully fragrant. They are also known as essences, volatile oils, ethereal oils or aetherolea, or simply as the “oil of” the plant from which they were extracted, for example, “oil of lavender”. An oil is “essential” in the sense that it carries a distinctive scent or essence of the plant from which it has been extracted. In addition to giving plants their distinctive smells, essential oils also provide plants with protection against predators and disease and play a role in plant pollination...