There is some really interesting stuff happening in the "reverse liver fibrosis" realm.
Here is state of the art in 2009 (great review of the mechanism) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2702953/ where we had no clear candidates, and
Here is state of the art in 2015 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4703795/ where we have literally hundreds of candidates (coffee and milk thistle (silymarin) and resveratrol are in there), and
Here is the state of the art in 2016 https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4754444/ in an article called Promising Therapy Candidates for Liver Fibrosis
I like this bit from the conclusion:
Since both animal experiments and clinical studies have revealed that liver fibrosis, even early cirrhosis, is reversible, treating patients by combined therapies on underline etiology and fibrosis simultaneously might expedite the regression of liver fibrosis and promote liver regeneration.