Sambucol, the original Black Elderberry extract, provides strong immune system support to help you and your family stay healthy throughout the year. By using a proprietary method of extraction, only Sambucol can guarantee consistent, immune supporting properties in every serving. Sambucol uses only specific European Elderberries (Sambucus Nigra) for our products. Black Elderberries have been recognized for centuries for their immune-supportive properties. Sambucol is a unique black elderberry extract rich in immune supporting flavonoids. Flavonoids are powerful, natural antioxidants that are thought to work to protect the body’s cells from the potential damage caused by free radicals. Certain flavonoids – anthocyanins – are found primarily in the pigments of dark blue and deep purple fruits such as the black elderberry. They assist with the body’s natural defenses and cell communication, providing immune support.