The German company I was thinking of is called Madaus and they make a drug called Legalon which is basically Milk Thistle extract. I found an interesting website by a research company in Maine that compared some of the high potency milk thistle products out on the market. They seem to think that Silybin, the active ingredient of silymarin, is the way to go. You can check it out here:
Thisilyn is the same as Legalon but sold in the U.S. I plan to try Maximum Milk Thistle (Siliphos), however. It also has a money back guarantee, but it is weird because I think it is only for unopened products, which basically makes the guarantee pointless. In any case, it's supposed to be better because your body is able to absorb more of it. So, we'll see.
Maybe the milk thistle you took did heal your liver and now you just need to clear all the toxins out. You said you came out jaundiced, did the doctors take any immediate steps to support your liver as you were growing up?