Listing description Tea tree oil (TTO), or melaleuca oil , is an essential oil with a fresh camphoraceous odor and a color that ranges from pale yellow to nearly colorless and clear. Detailed description It is taken from the leaves of the Melaleuca alternifolia , which is native to Southeast Queensland and the Northeast coast of New South Wales , Australia . Tea tree oil is toxic when taken by mouth, but is widely used in low concentrations in cosmetics and skin washes. Tea tree oil has been claimed to be useful for treating a wide variety of medical conditions. It shows some promise as an antimicrobial . Tea tree oil may be effective in a variety of dermatologic conditions including dandruff , acne , lice , herpes , and other skin infections. History and extraction The name tea tree is used...
An oilis "essential" in the sense that it contains the "essence of" the plant's fragrance—the characteristic fragrance of the plant from which it is derived.