Herb Pharm Black Elderberry Extract. Herb Pharm prepare their Black Elderberry Extract from the fully-ripened berries of Sambucus nigra trees which are Certified Organically Grown and/or Custom Wildcrafted in their natural wild habitat. To assure optimal extraction of Elder's bioactive compounds, the berries are hand-harvested only when fully mature, are carefully ahde-dried to retain their full color & aroma, and are then thoroughly extracted. Herb Pharm's Elderberries are never fumigated or irradiated. Black Elderberry Facts: Black elderberry extract has been found to be effective against the H5N1 strain of Avian Flu (Zakay-Rones et al 1995). Black elderberry extract contains a unique compound called Antivirin that can help protect healthy cells and inactivate infectious viruses. When given to patients, scientists have found the black elderberry extract, has the ability to ward off flu infections quickly (Zakay-Rones 2004). Black Elderberries are rich in anthocyanins which are a type of flavonoid anthocyanins are antioxidants that may protect cells from free radicals and support your body's immune system. Black Elderberries have almost 5 times as many anthocyanins as Blueberries and twice the overall antioxidant capability of cranberries. Black Elderberry has a more potent antiviral effect than Echinacea.