Sambucol black elderberry extract original is the ideal way to gain important natural antioxidants and vitamin c to maintain a healthy immune system what is sambucol sambucol black elderberry extract helps support the immune system to help you and your family stay healthy sambucol is made from black elderberries which have twice the natural antioxidant capacity of blueberries and more than 50 the overall antioxidant capability of cranberries antioxidants support the immune system by helping