Essential oils, also known as ethereal oils, are volatile, aromatic compounds derived from plants. Found in only about 10% of the plant kingdom, these oils are present in secretory structures such as glands, ducts, cavities, and hairs. Chemically, they belong to categories such as terpenes, phenols, and nitrogen-bearing compounds, consisting of carbon, hydrogen, and other elements like oxygen, nitrogen, and sulfur.

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Rakesh Kashyap , , Future Integrative , Molecular Mechanisms , Therapeutic Potentials , Essential Oils , Systems Biology Approach , Future Integrative Medicine ,