Tea Tree Oil is commonly used throughout the fragrance industry, though the ingredient has experienced recent growth within a wide range of personal care products. Steam-distilled from the leaves of the small Melaleuca Alternifolia tree, this oil is harvested and produced throughout eastern Australia. Much of this production comes from wild-harvested trees, though certain ranchers also maintain small populations of tea trees upon their plantations for the sole purpose of essential oil production. Tea trees tend to grow better in wetter conditions, making them a staple of the Australian coastline.