HI - The first year I did Clark's parasite cleanse I went out and collected green Black-Walnut s and used vodka to make the tincture. I had Wormwood (Artemesia absinthium) in the garden so collected leaves, chopped them up and took them with honey. Cloves I bought whole and ground them in a blender and put them in capsules. This worked well. Later on, since Hulda Clark wrote that this method won't kill all parasites I used Quassia, Epazote, beets, garlic, Pau d'arco, turmeric to name a few.