The best liver protection you can use is Tyler Liver Detox and ALA. ALA will help keep your liver clean and aid in the regeneration of your liver. Tyler has every known liver aid whether its a vitamin or chemical, and the most important one besides ALA and that's d-Glucarate.
I'm using Fina, and to protect my liver, I use ALA between1g and 1.5g/day, NAC @ 1200 mg's/day, and Milk Thistle,Silymarin content is between140 and 280 mg's/day. I also take 1-2g of cranberry conc./day, but, thats more for kidneys.