Milk Thistle (or Silybin)

I had read that Milk Thistle is good for liver detoxification, but after I started taking it, read somewhere else that it's good for phase I but NOT phase II (the latter is what's slowed down with GS).  Determined to get to the bottom of it, I've been searching the internet and found a study that basically says silybin inhibits the glucuronidation of UGT 1A1.  Unless I'm reading this wrong (someone else read it and tell me!), I guess I'll take Milk Thistle off my list of supplements...

http://www.ncbi.nlm.nih.gov/pubmed/15155549?dopt=Abstract