Elderberries are tiny purple berries packed with anti-oxidants. They contain hemagglutinin protein which have been shown in studies to stop a virus’ capability to replicate. If taken before exposure they can prevent a virus from taking hold and if taken after they can keep the virus from spreading. Combined with the well-known immune stimulant echinacea, these two make a powerful pair for the preventing or shortening the duration of colds and flu. St John’s Wort is a traditional herb for liver support, is also anti-viral and helps to lift mood, bringing in herbal sunshine during the darker winter days. Ginger is the warming activator in the formula, delivering the other herbs into the body.