Synopsis

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

Tea, particularly in the form of herbal teas such as black, green, or herbal infusions, has a long-standing traditional use in various cultures for supporting scalp health and treating dandruff. The rationale is often rooted in anecdotal evidence and folk remedies, where tea rinses are believed to soothe irritation, reduce itchiness, or provide mild antimicrobial effects. For example, green tea contains polyphenols and catechins, which are thought to exhibit anti-inflammatory and antimicrobial properties. Black tea is sometimes used as a hair rinse for its astringent qualities, which may help reduce oiliness on the scalp—a factor contributing to dandruff in some cases. However, the scientific evidence for the efficacy of general tea (not specifying "tea tree oil," which is a different substance with demonstrated antifungal properties) in the treatment of dandruff is limited. Few clinical studies have specifically investigated the effects of tea infusions on dandruff, and existing research is mostly preliminary or extrapolated from the general anti-inflammatory or antioxidant effects of tea components. Most recommendations for using tea against dandruff are based on traditional practices rather than robust clinical validation. Therefore, while tea is traditionally used for dandruff in some cultures, its effectiveness is supported by only modest scientific evidence, meriting a rating of 2 out of 5.

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Other ingredients used for Dandruff

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