In 1926 nurse Renee Caisse brought this formula to the modern world of medicine. After her extensive studies of herbs and Native American medicine. At the time she worked for a doctor who was pioneering new treatments for severe and chronic illnesses including cancer. Still today this formula is used in the treatment of cancer and other diseases in Canada. Here in the US it is sold as a detoxifier for it ability to rid the body of toxins and stimulate new cell growth. Essiac has had positive results on every body function.