Nettle Leaf INCI: Urtica dioica Certified Organic Kosher Certified Origin: Poland and Bulgaria Edible Food Grade: Yes. This herb has been used in traditional Austrian internal medicine, in teas, for the attempted treatment of disorders of the kidney and urinary tract, gastrointestinal tract, locomotor system, skin, cardiovascular system, hemorrhage, influenza, rheumatism, and gout. The leaf of the nettle holds high antioxidant properties, making it an ideal addition to some skin formulas. It can be used for treating both eczema and scalp conditions.