Synopsis

Source of validity: Traditional
Rating (out of 5): 2

Tea, particularly when referred to as "mixed tea" or herbal tea blends, has a long-standing use in traditional medicine for a variety of scalp and hair conditions, including dandruff. Traditional practices in regions such as India and China have recommended rinsing the scalp with tea infusions—most commonly black or green tea, or blends with herbs like chamomile or rosemary—to soothe the scalp and reduce flakiness. The rationale is often attributed to the natural astringent properties of tannins in tea, as well as purported antimicrobial effects. However, while these traditional uses are well-documented in ethnobotanical literature, there is limited scientific evidence directly supporting the efficacy of tea rinses for treating dandruff. Some in vitro studies have shown mild antifungal activity of certain tea extracts, but clinical studies in humans are lacking. Therefore, while the use of tea for dandruff is rooted in tradition and anecdotal reports, robust scientific validation is absent, and the evidence supporting its effectiveness remains weak.

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