Hi!
May I suggest you re-post your quetion on the Ask Moreless Forum..... He´s sure to give you a competent answer.
On the other hand (and my 2 cents!), since its so imp to get the Liver Flush right - I´d go out and buy some Magnesium Sulphate ( Epsom Salts ), since its rather inexpensive. When I bought Epsom Salts some years ago, I was confused after seeing USP on the package.... Moreless explained that USP is an abbreviation for US Pharmacy and therefore OK.