Harker Herbals Liver Tonic (formally known as Livernurse) is an all herbal, daily liver and gall bladder cleanser and tonic. It may help support normal liver and gallbladder organ functions. The liver is an iron organ and 858 Livernurse is an iron and oxygen-rich liver and blood elixir, having a blood-purifying effect. 858 Livernurse is a compound of over 20 liver or 'hepatic' herbs and oils, each historically proven to beneficially detoxify these bloodmaking organs of the body and bring about an improvement in general health. The spleen, gallbladder and pancreas are also benefitted by this potent, yet very gentle-acting, liver tonic.