Making my own zapper too.
For Wormwood : I got a local (Pakistani) herbal preparation that is really old and used for liver issues.. which ties in with what Hulda says, that the liver needs cleansing.
Anyway, it's Jigarene, by Hamdard, and contains Wormwood (artemisia absinthium). I got this because of the ingredients, for the Wormwood , and used Black-Walnut hull from a company (forget which, a while back). I think it worked fine. I ground the cloves and bought empty capsules from the drugstore to put them in.