Underberg contains only carefully selected and blended herbs. In addition to visual and sensory control, these herbs are tested in certified labs, applying more than 250 individual criteria.It contains natural and valuable antioxidants, which are preserved by careful extraction. It contains 44% vol. premium kosher alcohol used for the extraction of the herbal substances. It contains drinking water that is constantly monitored.It is free of added sugar or caramel. It is gluten-free and is listed in the German Coeliac Society’s index. It is kosher certified, which is shown by the Orthodox Union (O.U.) symbol. It is 100% GMO-free.