Aniseed oil is a sweet, licorice-scented essential oil extracted via steam distillation from the seeds of the anise plant (Pimpinella anisum). It is used in traditional wellness for its potential digestive, respiratory, and calming properties, and it has properties that include being antiseptic, antispasmodic, and a carminative. The oil is potent, so it must always be diluted before use, and is often used in aromatherapy, massage oils, and products like breath fresheners.