I agree but it depends on the liver problem whether its emotional congestions or more serious such a hepatitis. The solution must fit the problem. People who are desperate will tolerate more inconvenience that those who are not.
Although Bupleurum is commonly mention in connection with clearing the liver when you look as strong decoctions for removing Gallstones it is not included.
Looking through a number of suppliers the dose recommendation varies considerable. From 1 to 10 ml, from 1 week to one month.