I'd heard that it contained an ingredient more black market than grey market which is why the product was rebranded as being for the South American market where the laws are different.
I've googled this product and all I found were a few cached discussion board posts referring back to other discussions. I got the impression that there was a big flap at the time this product was first released but there doesn't appear to be much in the discussion board archives here or at the other big boards which cover this subject.
I don't want to re-open any old wounds but assuming I'd stumbled across a bottle of this product, I'd like to understand what's actually in it before I would consider consuming it.