Sambucol Black Elderberry Immune Defence Liquid is uniquely formulated with highly concentrated Black Elderberry extract, Vitamin C and Zinc to help support immune system health and function. During the colder months, busier days and cold and flu season, when one of the family get sick it's often only a matter of time before the rest of the household gets it too. That's where Sambucol Black Elderberry Immune Defence liquid comes in. With the power of Sambucol's Cold and Flu relief with added immune support so that your family get better faster. Includes Elderberry that is traditionally used in Western herbal medicine to relieve symptoms of colds and flu including sore throat, congestion and cough.