milk thistle

Hi
I want to go on a course of milk thistle for liver regeneration etc.

My supplier does two different types, the more expensive is 80% Silymarin extract powder, the cheaper is silybum marianum powder. The first one is more than double the price and half the quantity of the second.

Question is will the cheaper one do the job and how much should i take and for how long, for the different milk thistle powders.


Thank you