Also known as melaleuca, from the name of its native Australian plant source, Melaleuca alternifolia. Tea tree oil also has skin-soothing properties and is an antioxidant.
For improving skin concerns, tea tree oil concentrations of 5% to 10% are recommended. However, the amount present in most skincare products is usually less than 1%. Note that tea tree oil is a fragrant oil whose volatile components of limonene and eucalyptol can cause sensitizing reactions. Careful use and storage of tea tree oil is advised.