Harness the power of pure tea tree oil, clinically proven to alleviate scalp concerns and promote a healthier, balanced environment. We researched dozens to find the best tea tree oil shampoos on the market. Verkkobecause of tea tree oil's antimicrobial properties (antifungal and antibacterial), the benefits of tea tree shampoo include combating dandruff and. Verkkotea tree oil is a workhorse ingredient for the hair and scalp. Here, we've rounded up the best tea tree shampoos for the healthiest head of hair.