Scientifically Tested Supports Immunity High Antioxidant Levels Unique Extraction Method Dietary Supplement Supports Immune System Virologist Developed Scientifically Tested Great Tasting Syrup All Natural Berry Flavor Kosher Use daily for maximum benefit Sambucol, the original Black Elderberry extract, provides strong immune system support to help you and your family stay healthy throughout the year. Sambucol Black Elderberry extract conveniently arms you with some of the best protection nature has to offer. Developed by a world renowed virologist, Sambucol is the unique black elderberry extract that has been used in scientific studies. By using a proprietary method of extraction, only Sambucol can guarantee consistent, immune supporting properties in every serving.