The dark blue/black berries of this plant have many naturally-occurring nutritional substances such as rutin, auercetin (flavonoids) and anthocyanins. Current research supports the long held beliefs about Elderberry's health benefits on the body. Elderberry syrup has been traditionally used to help support the immune system, especially during the winter season or when experiencing extra stress. Sambucus Kids Formula combines black elderberry with organic echinacea and organic astragalus for gentle enhanced immune support. Organic Agave Nectar insures a pleasing, smooth taste, with no artificial ingredients.