10 Health Benefits of Tea Tree Oil

10. Precautions

While tea tree oil is generally safe when used topically, it should never be ingested. People using tea tree mouthwash should take care not to swallow it. Before using the oil topically, it is a good idea to test it on a small patch of skin to ensure no allergic reaction. Topical products should contain no more than ten percent of the oil, as higher concentrations can cause negative reactions. Keep the oil away from the eyes and sensitive body parts. When buying tea tree oil, make sure the bottle lists the contents as 100 percent Melaleuca alternifolia oil.

Mack15 / Getty Images