Evidence supporting the use of: Terpene
For the health condition: Dandruff

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Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Terpenes are a large and diverse class of organic compounds produced by various plants, with several individual terpenes (such as tea tree oil's terpinen-4-ol) being studied for their use in treating dandruff. Dandruff is commonly associated with the overgrowth of Malassezia yeast on the scalp, and certain terpenes possess antifungal and anti-inflammatory properties that may help control this microorganism and reduce symptoms like flaking and itching. The best-studied example is tea tree oil, which contains significant amounts of terpinen-4-ol and has demonstrated efficacy in clinical trials. For instance, a double-blind, randomized, placebo-controlled study published in the Journal of the American Academy of Dermatology (2002) found that a 5% tea tree oil shampoo significantly reduced dandruff severity compared to placebo. The antifungal activity of some terpenes has been shown in vitro against Malassezia species as well.

Other terpenes, such as those found in eucalyptus or lemongrass, also exhibit antifungal properties and have been included in some commercial anti-dandruff products, though clinical evidence for these is more limited. Overall, the evidence base is moderate, with some clinical validation specifically for certain terpenes (notably tea tree oil), but not for terpenes as a broad category. Thus, scientific support exists but is strongest for specific cases rather than for all terpenes.

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Products containing Terpene

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