Liv-52 is a liver protecter and detoxifying product that has been a staple in bodybuilding circles for many years. It has since been re-branded under the name ‘Liver care’, and is produced by the Himalaya company. One of the reasons so many bodybuilders have used this product is the many times it has been studied and tested. It has been used in many clinical studies. If you research on the net briefly you can see many papers that were performed in randomized, double-blind, placebo-controlled studies. Here is link to one such study that states this in the conclusion:
The results demonstrated that the patients treated with Liv-52 for 6 months had significantly better child-pugh score, decreased ascites, decreased serum ALT and AST. In placebo administered patients all the clinical parameters recorded at beginning of the study were not significantly different than after 6 months. We conclude that Liv-52 possess hepatoprotective effect in cirrhotic patients. This protective effect of Liv-52 can be attributed to the diuretic, anti-inflammatory, anti-oxidative, and immunomodulating properties of the component herbs.