Tea Tree Oil Purifying is made for dry, scaly scalp with dandruff. It helps prevent buildup of chemicals and dead skin on your scalp. This keeps your hair healthy, dandruff-free and moisturized. Tea tree oil is known for its antifungal properties, meaning it can help treat dandruff. It is also a potent cleanser, so regular use can keep your scalp clean from grime and dead skin cells, keeping hair follicles free of build-up and freshness. Tea tree oil can also help control excess oil production by the sebaceous glands, keeping the scalp moisturized and healthy.