This herbal tincture is made with the whole green nut as soon as it falls from the tree. 2 oz. dropper bottle. Grown on our farm. This tincture is made with the whole green nut immediately after it has fallen from the tree. They are in 2oz dropper bottles. It is traditionally used for parasites. I use walnut hull for myself, my animals and try to use all parts of the tree on my farm. I also eat the nuts, use a dye for basket weaving, dying yarns for weaving& knitting as well as the ink for woodworking and drawing. I hope to make things with the wood in the future. This tree is native to the US. These trees I planted years ago from nuts on a tree on my grandfathers farm. Now 30 trees are bearing nuts. We have used only organic/biodynamic methods on our farm in the 40 years we have lived here.