Essential oils are concentrated liquids extracted from plants, flowers, fruits, seeds, and roots. They contain the natural aroma and flavor of the plant they are derived from, and are used for a variety of purposes including aromatherapy, perfumes, cosmetics, and as a natural remedy in traditional medicine.

Essential oils are typically obtained by distillation, expression, or solvent extraction methods. They are often used in massages, facials, baths, and other spa treatments. It is also used as an alternative or complementary treatment for various health conditions such as stress, anxiety, headaches, colds, and flu.

It is important to note that essential oils should be used with caution, as they are highly concentrated and should be diluted before use. Also, it is not advisable to use essential oils internally without proper medical supervision.