what herbs are in essiac tea?
<answer> Organic burdock root, organic turkey rhubarb root, organic slippery elm bark and organic sheep sorrel. <context> essiac was promoted and popularized by a Canadian nurse named Rene M. Caisse, who named the formula with her last name spelled backwards. Constituents. The historic Caisse blend contains just four herbs: organic burdock root, organic turkey rhubarb root, organic slippery elm bark, and organic sheep sorrel.