the epsome salts allow the bile ducts to expand.
i'm not too sure how everything realy happens. .. . it's been explained to me several times but it never realy sticks.
i just put faith in the flush i guess. the only products from julia change i took were. . . . Coptis - and Curcuma - i have the gold coin grass but havn't taken it. also after i took the epsome salts i put a heating pad on my right side, hopeing that it would allow the duct to open even more. . . i realy don't know if that helped a great deal, but something worked. i'm waiting another week before doing another flush, the last one i did was last week. good luck. and if you think a stone has gotten stuck, just repeat the flush again. and it should clear it right out.