Rosemary essential oil is extracted through steam distillation. It is one of the most popular for hair skin & aromatherapy oil that has been used since ancient times. It is used as an ingredient in several products such as hair care skin care cleansers soaps face masks toners and creams. It is safe for topical application although dilution with a carrier oil such as jojoba or fractionated coconut oil is recommended. Our Rosemary oil is steam distilled highest quality oil extracted from the leaves and flowers of rosemary plant.