Essex Botanical is an herbal preparation containing purified water (by reverse osmosis), burdock root, sheep sorrel, slippery elm bark, and turkey rhubarb root. The formulation originated with the Ojibway Indian Nation in Ontario, Canada but it was developed, refined, and used extensively over a period of more than 50 years by Rene Caisse, a Canadian nurse who lived and worked in the town of Bracebridge, Ontario.
