Evidence supporting the use of: Alpha-terpineol
For the health condition: Congestion

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Synopsis

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

Alpha-terpineol is a naturally occurring monoterpene alcohol found in the essential oils of several plants, including pine, lilac, and eucalyptus. Its use for treating or supporting relief from congestion is primarily rooted in traditional medicine and aromatherapy. Folk and herbal practices have long utilized essential oils containing alpha-terpineol for respiratory ailments—often through inhalation or topical application—to help ease symptoms such as nasal or chest congestion. The rationale is that volatile oils may help open airways, provide a sense of relief, or have mild expectorant properties.

However, direct scientific evidence supporting the efficacy of alpha-terpineol specifically for congestion is limited. Some in vitro and animal studies suggest that alpha-terpineol has anti-inflammatory and mild antimicrobial properties, which could theoretically support respiratory health. But robust clinical trials in humans demonstrating clear decongestant effects are lacking. Most of the available data come from studies on whole essential oils rather than isolated alpha-terpineol, making it difficult to attribute any effect solely to this compound. In summary, the use of alpha-terpineol for congestion is supported more by tradition and anecdotal evidence than by rigorous scientific validation.

More about alpha-terpineol
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Products containing alpha-terpineol

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