Why Tea Tree Hair Serum? Tea tree hair serum contains tea tree oil, which has antifungal and antibacterial properties that treat and prevent dandruff by killing dandruff-causing fugus. With regular use of tea tree serum, you can get rid of dandruff and other scalp infections too. This scalp serum is designed to provide an effective, targeted action against dandruff by working at its very “root”. With the intelligent combination of tea tree oil, willow bark extracts, propanediol caprylate & piroctone olamine, this hair serum will leave your hair flake free and provide relief from an itchy scalp. This anti-dandruff hair serum not only keeps stubborn dandruff away but also nourishes your hair to make it feel fresh and healthy from root-to-tip.