Tea Tree essential oil is a traditional oil that has been used for medicinal purposes. It has a strong herbal scent. I make my Tea Tree soap with 1/2 tsp of tea tree essential oil per bar, so if you love tea tree, this is the soap for you. Recommended for adult use. It is made with local hand-gathered goat milk, olive oil, food grade lye, unrefined golden shea butter, coconut oil, and tea tree essential oil. (I don’t add any color to this soap.)