Formula #6 Historically used to cleanse the blood stream and clear the skin. Most skin problems are indicators of a problem in the blood stream or improper elimination. Many have successfully used this product with poison oak, acne, eczema, rashes, boils and swollen glands. This is also known to work as a mild laxative. The combination consist of: Burdock, Yellow Dock, Dandelion and Licorice.