Because of the antifungal and antibacterial properties of Tea Tree, it is helpful for use on problem skin such as Teenage and acne-prone skin. Studies (link) have found Tea Tree Oil kills several common bacteria, these bacteria include E.coli, S.pneumoniae and H. influenzae.

The effectiveness of Tea Tree with acne prone skin was shown in a variety of studies (link 1, link 2, link 3). One study showed that a 5% Tea Tree Gel was nearly 6X more effective at reducing lesions than a placebo (link). Compared to benzoyl peroxide, one of the most common acne medications, another study (link) showed Tea Tree to be as effective.

In another study (link), it was shown that adding Tea Tree Oil to a cleanser boosted the cleanser's effectiveness against E.Coli. Tea Tree works as a natural deodorant, with the antibacterial properties helping to clear underarm perspiration. In addition to the significant properties above, Tea Tree Oil has been shown to help with nail fungus and skin inflammation, control dandruff, and treat athletes' feet.