Uva Ursi
Traditional bearberry leaf for short-term urinary support
FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Always consult your physician before starting any supplement.
Uva Ursi (Arctostaphylos uva-ursi), commonly known as bearberry, is a low-growing evergreen shrub whose leaves have been used in European and Native American herbal traditions for centuries to support urinary tract health. The leaves contain arbutin, a compound the body converts into hydroquinone — a substance with antibacterial and astringent properties within the urinary tract.
Uva ursi is generally regarded as a short-term, occasional-use herb rather than a long-term daily supplement. Because of how it works (and potential effects on the liver with prolonged use), most herbalists and Germany's Commission E recommend limiting use to no more than one to two weeks at a time, and not using it more than a few times per year without medical guidance.
Urinary Tract Support
Traditionally used at the first sign of urinary discomfort to support the body's normal response.
Antibacterial Properties
Arbutin converts to hydroquinone in alkaline urine, which has demonstrated antibacterial activity in laboratory studies.
Astringent Action
Tannins in uva ursi leaves have a traditional astringent, tightening effect on tissues lining the urinary tract.
Short-Term Use Profile
Designed for occasional, time-limited use rather than ongoing daily supplementation.
- Don't use for more than 1–2 weeks at a time without medical guidance
- Avoid acidic foods/drinks (cranberry juice, high-dose vitamin C) at the same time — uva ursi works best in alkaline urine
- Not recommended during pregnancy or breastfeeding
- If you suspect an active UTI, see a doctor — this isn't a substitute for antibiotics when needed
Uva ursi has been approved by Germany's Commission E for short-term use in mild urinary tract complaints, based on its arbutin/hydroquinone content and long traditional-use history. Modern clinical research is limited compared to mainstream pharmaceuticals, and most available studies are small. Concerns about hydroquinone's effects on the liver with long-term or high-dose use are why short-term, occasional use remains the standard recommendation.
How Uva Ursi Compares
| Ingredient | Best For | Key Difference |
|---|---|---|
| Uva Ursi | Short-Term Urinary Support | Antibacterial via arbutin/hydroquinone; for short-term use only |
| Cranberry | Urinary Tract Maintenance | May help prevent bacterial adhesion; suitable for daily use |
| D-Mannose | Urinary Tract Maintenance | A simple sugar that may help flush certain bacteria; popular daily option |
Uva ursi is for occasional, short-term support — cranberry and D-mannose are more commonly used for ongoing daily maintenance.
Full stack recommendations coming soon in our Stacks section.
- Yarnell E. Botanical Medicines for the Urinary Tract. World J Urol. 2002;20(5):285–293.
- Schindler G, et al. Urinary Excretion and Metabolism of Arbutin After Oral Administration of Bearberry Leaf Extracts in Humans. J Clin Pharmacol. 2002;42(8):920–927.
- Siegers CP, et al. Arbutin and Its Metabolites in Urine of Humans After Oral Intake of Bearberry Leaf Extract. Phytomedicine. 2003;10(6–7):558–560.
Evidence-based supplement recommendations from a former physical store owner. No hype. No BS. Just facts.
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