This Now Foods Rosemary Essential Oil is extracted through steam distillation to ensure high purity and potency. Rosemary essential oil is renowned for its stimulating and invigorating aroma, making it a popular choice for mental clarity and focus throughout the day. It is versatile and can be used in diffusers, aromatherapy blends, or diluted for topical application as part of a well-researched personal care regimen. It brings an herbaceous, fresh scent to any environment.