Eucalyptus

Also known as Eucalyptus globulus

A study in the Clinical Microbiology Reviews highlight the antimicrobial potential of eucalyptus oil against respiratory pathogens. Eucalyptus has also been scientifically researched to reduce nasal congestion and improve airflow. Eucalyptol (1,8-Cineole) is the primary active, scientifically researched for its decongestant and mucus thinning properties. It works by reducing inflammation and mucus production in the respiratory tract. The leaves have been used for centuries by Australian Aboriginal people for their antiseptic and healing properties.