One alternative therapy that has been shown to reduce dandruff in small studies is daily shampooing with tea tree oil. More study is needed.
Tea tree oil, which comes from the leaves of the Australian tea tree (Melaleuca alternifolia), has been used for centuries as an antiseptic, antibiotic and antifungal agent. It's now included in a number of shampoos found in natural foods stores. The oil may cause allergic reactions in some people.
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