What is Tea Tree Oil? Native to Australia, the tea tree is a flowering tree with long, slender leaves that tends to grow near bodies of water. The foliage is the source of its oil, which has an earthy, eucalyptus-like scent and is commonly used topically. Australian Tea Tree oil is used for its legendary skin-supportive properties and for generations, tea tree oil has been regularly incorporated into hair-care products and skin lotions. What Does Tea Tree Oil Do? Discover the skin-sational properties of Melaleuca alternifolia with PipingRock’s pure Australian Tea Tree Oil! A must-have beauty product, this topical oil naturally supports the skin, promoting a clear, moisturized, and healthy complexion. It can even be combined with carrier oils such as sweet almond oil for a refreshing full-body massage oil!