In her latest book, The Prevention of All Cancers, page 79, Dr. Clark clearly writes not to mix the herbs (Black walnut green hull, cloves and Wormwood ):
"These herbs must be taken together as a single treatment within 1/2 hour (preferably within 5 minutes). But they should not be premixed because they interact with each other to destroy their potency."
I took that to mean any product like Clarkia is a bad idea, though I have read posts from many people saying they have had good results with Clarkia . The main page of this forum even recommends Clarkia .