Gaia Herbs Black Elderberry Certified Organic - 1 oz. (30 ml) Gaia Herbs Black Elderberry (sambucus nigra) certified organic liquid herbal extract. Black Elderberry encourages healthy upper respiratory function. It supports immune function and response. Black Elderberry promotes healthy mucosal tissue. Elderberries have long been used as food, particularly in the dried form. Elderberry wine, pie, and lemonade are some of the popular ways to prepare this plant as food. Native American