Essiac and it's composition has been used for thousands of years by the autochthons Native Americans and since 1922 by Nurse Rene Caisse who has called the product Essiac, which is her last name spelled backwards. It is said in most literature, that Essiac has cured thousands of cancers, has proven itself in the prevention of cancer, and definitely enhances the well being of all who consumed the Essiac products.