Essiac consists of only four herbs, formulated in specific quantities under special conditions to result in a premium quality, medicinal herbal tea. Burdock root, Sheep Sorrel, Slippery Elm bark and Indian rhubarb root are the herbs that make up this unique formula. Essiac has a long history of therapeutic use, praised by many for its apparent ability to shrink tumors and help restore health. Some Natural Health professionals recommend taking Essiac daily for optimal health, assisting the body in removal of toxins and helping to boost overall immunity. Essiac is a safe herbal remedy that has been used for years to help restore health after or during illness and disease.