Liver tonics

We come across patients with liver dysfunction consuming Liver tonics some on prescriptions and some without any medical advice. When I studies these preparations searched the available published literature the information was limited to some statements without any evidence. Are there any such proven preparation worth describing as Liver tonics? if we look into the cost of these preparation some are really unaffordable. The market segment of such preparations is huge.
Education of medical professional is definitely important but more important is education of general population who consumes without much benefits to them.
how to achieve this ? Can we think of any good modules for such a project?

Are there any real Livertonics?

Liver disorders affect human population to a significant extent. At the same time, besides curative medicines( Where Pathology is known) numerous preparation sold as Liver tonics. Does any of these have any significant therapeutic value? I have searched literature, conducted some studies but could not come across a single real meaningful preparation worth calling Liver tonic? Have you come across any? Number of preparations under herbal/ alternative medicine/ holistic medicine are popularly sold for the improvement of Liver functions. None has shown any documented proofs so far.