Nettle Leaf Fluid Extract (Urtica dioica)BOTANICAL NAME Urtica dioica folia COMMON NAMES Nettle Leaf FAMILY Urticaceae A herbal food supplement, traditionally used as an antioxidant and ease joint inflammation. Extracts such as tinctures or essences offer a convenient alternative to herbal teas. Many are used in food, food supplements, cosmetics and as an ingredient by herbalists in bespoke formulas.