With Eucalyptus Australiana, Lavender, Peppermint and Tea Tree Oil Our eucalyptus oil is sourced from the world's largest eucalyptus plantation, Banalasta Oil Plantation. Banalasta eucalyptus australiana has a milder more pleasant aroma with strong anti-microbial qualities. Eucalyptus australiana is the species of choice for aromatherapists as the medicinal eucalyptus most suitable for use on the skin.Tea Tree Therapy