Basically Tudca is a non toxic bile acid. It breaks up enzymes that prevent the flow of bike acids to the liver which in turn helps the damage. UDCA is another that is actually approved in the U.S. For treatment of cirrhosis the last time I read.
healthy options for liver care supplements are
Tudca/Udca/NAC/Essential-Forte/Liv52/Dandelion root
Tudca is king for liver care though. It's expensive but you can buy it in bulk powder but I heard it's rough that way.
Use this one guys, have tudca and some other things to total help you stay healthy
LGI Damage Control - 120 Capsules
Tudca i buy online, Udca they sell in-store at local health foods store, also liv-52 by Himalaya company is great (although renamed to liver protection, but made still by Himalaya) is great to be taken anytime not necessarily on cycle only. Other items like milk thistle, dandelion root can be quite useful as well but generally not absolutely needed if your taking other things such as the ones above. )
logging in and seeing a few more karma points is like Christmas every time..