The primary active compounds in teepuuõli are believed to be terpinen-4-ol and other terpene hydrocarbons. These components are thought to contribute to its various properties. Teepuuõli is widely recognized for its antimicrobial, antifungal, and antiseptic qualities, leading to its inclusion in a range of personal care and cleaning products. It is commonly found in soaps, shampoos, lotions, and mouthwashes, and is also used in aromatherapy.
When used topically, teepuuõli is typically diluted with a carrier oil, such as coconut or jojoba oil, to prevent skin irritation. While generally considered safe for external use when properly diluted, it is important to perform a patch test before widespread application. Teepuuõli should never be ingested, as it can be toxic if swallowed.