Hive Sweet Fennel Essential Oil helps to stimulate the mind, providing clarity and focus. Distilled from carefully selected ingredients for 100% purity. Sweet Fennel Oil has a sweet, slightly peppery aroma reminiscent of aniseed. Benefits. Middle Note fragrance. Great for use as a room scent. Ideal for aromatherapy and message treatments. Great for feelings of tranquillity. Helps to promote healthy digestion and may aid to suppress appetite.