Bluebonnet's Standardized Elderberry Fruit Extract Capsules contain a standardized extract of polyphenols, the most researched active constituents found in elderberry which may help support immune health. A clean and gentle water-based extraction method is employed to capture and preserve elderberry's most valuable components. Available in easy-to-swallow vegetable derived capsules for maximum assimilation/absorption and for a truly vegetarian/vegan formula.