Temporary tiredness, short-term stress, rain, wind, cold and other unfavourable circumstances can all help to undermine your body's natural resistance. Physalis Echinacea forte bio herbal infusion contains red cone flower, hibiscus, rosehip and elderberry, all of which support your natural resistance, thereby enhancing your natural protection. Mild, with a pleasing flavour. Delicious on a cold winter's evening, with or without honey