- Uva Ursi soothes, tones, and can support the membranes of the urinary system and is helpful in gravel or irritation of the kidney or bladder, pyelitis, and bladder issues. – Uva Ursi, also known as bearberry, has been used by herbalists for over 1,000 years in China. Marco Polo reported its use in the 13th century and helped to bring the use of Uva Ursi to western Europe. Natives have also used Uva Ursi for hundreds of years.