* Premium Herbal * Certified 480 mg * Dietary Supplement Health & longevity through the healing power of nature—that"s what it means to Trust the Leaf. Uva Ursi (Arctostaphylos uva-ursi) was first used by Welsh physicians in the 13th century. The leaves were officially a drug for urinary antiseptic in the United States Pharmacopoeia and the National Formulary from 1820 until 1950. Our Uva Ursi is grown in the wild, tested and produced to certified quality standards.