Uva ursi, derived from the leaves of Arctostaphylos uva-ursi, has a long history of traditional use in supporting urinary tract health. Research suggests that its key compound, arbutin, is converted in the body to hydroquinone, which appears to exhibit antimicrobial properties within the urinary tract. Studies indicate that uva ursi leaf extract may help maintain a healthy urinary environment, particularly when urine is alkaline, as this seems to enhance the activity of its beneficial compounds. While the traditional use is well-documented and some clinical research is encouraging, the body of evidence is still evolving, and most researchers agree that further well-designed trials are needed to fully understand its effectiveness and long-term safety profile.
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View studies →These are commonly referenced dosage ranges for this supplement. They are not medical recommendations. Always consult a healthcare provider before supplementing.
| Form | Dose range | Frequency | Studied for | Source |
|---|---|---|---|---|
| Capsule | 500–1,000 mg | Twice daily | Uncomplicated lower urinary tract infections | Traditional and empirical use supported by European Medicines Agency (EMA) monograph |
| Extract | 100–210 mg | Three times daily | Urinary tract health; arbutin-equivalent dosing | Based on arbutin content standardization used in European clinical studies |
| Extract | 400–840 mg | Three times daily | Urinary tract infections and antimicrobial support | Common in clinical trials; standardized to 20% arbutin content |
| Liquid | 1.5–4 g | Three times daily | Urinary tract health; traditional herbal tea or tincture preparation | Traditional use per EMA and Commission E monograph recommendations |
| Tablet | 700 mg | Three times daily | Antimicrobial properties for urinary tract health | Dose used in controlled clinical trials for UTI prevention and treatment |