Bio-Botanica, Inc. Uva Ursi Leaf In Propylene Glycol is a product in the plant family Ericaceae, with the Latin name Arctostaphylos uva-ursi. Its key chemical constituents include hydroquinones, arbutin, tannins, phenolic glycosides, and flavonoids. This product is designed for the food/beverage/dietary supplement functional category of detox support.