Synopsis

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

Uva ursi (Arctostaphylos uva-ursi), commonly known as bearberry, has a long history of traditional use for supporting urinary tract and bladder health. Historically, indigenous peoples in North America and herbalists in Europe have used the leaves of uva ursi as a remedy for urinary tract infections (UTIs), cystitis, and other bladder-related issues. The main active compound in uva ursi is arbutin, which is thought to be converted in the body to hydroquinone, a substance with antimicrobial properties that may help inhibit the growth of bacteria in the urinary tract. Despite these traditional uses, scientific research on the efficacy and safety of uva ursi for bladder health is limited and results are mixed. Some in vitro and animal studies suggest potential antibacterial activity, but well-designed clinical trials in humans are few and often inconclusive or show only modest benefit. Furthermore, concerns about potential toxicity and adverse effects with long-term or high-dose use have been raised, especially due to the hydroquinone content. Therefore, while uva ursi enjoys a strong traditional reputation as a bladder-supporting herb, scientific validation for its effectiveness and safety remains limited. Most evidence supporting its use is based on historical and ethnobotanical records rather than robust clinical data.

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