Anise Oil has a very sweet, licorice-like aroma with slight husk notes. Properties: Anise Oil is a wonderful perfumey addition in subtle quantities, especially in Citrus blends or as an foundation to a Vanilla blend. Anise oil has a high concentration of anethole, as much as 90%, and should be avoided if you are pregnant or have estrogen dependent cancers. Use Suggestions: Anise Oil mixes well with Sweet Almond oil. Anise oil is best used in aromatherapy for breathing difficulties - May have a good effect on asthma as a natural asthma remedy. Did you know that trout love the licorice smell of anise oil? If you love fishing for trout, the fish will love this anise oil!