Lemon essential oil is a refreshing and uplifting oil that is derived from the peel of the lemon. It has a sweet, citrusy aroma that is both invigorating and energizing, making it a popular choice for use in aromatherapy and perfumery. In aromatherapy, lemon essential oil is often used to boost energy and improve mood. It is also believed to have antioxidant and astringent properties, making it a useful oil to use for skin and hair care.