Optimal well-being. Our Tea Tree Oil is prepared from the fresh (undried) leaves of Melaleuca Alternifolia tree which are sustainably wildcrafted in their native wetlands habitat in Queensland, Australia. The leaves are hand-harvested at their optimal potency and are then promptly steam-distilled to produce the finest oil possible - solvents are never used. Our Tea Tree Oil is low in cineole (less than 7%) and is therefore very gentle to the skin and mucous membranes. 800-348-4372. www.herb-pharm.com.