Dr. Verghese"s Liver Formula is a proprietary blend of herbs and nutrients designed to support healthy liver function. Dr. Verghese"s Liver Formula contains Milk Thistle Extract, which has been shown in clinical and non-clinical studies to support the liver, as measured by standard liver enzyme laboratory tests. In addition, Dr. Verghese"s Liver Formula contains N-Acetyl Cysteine and Methionine, two amino acids known to enhance the production of glutathione in the liver. Glutathione, a major cellular antioxidant plays an essential role in liver detoxification mechanisms. Also included in this Liver Formula are other herbs (Schisandra, Bupleurum, and Scute) that have been developed by Dr. C. Samuel Verghese, M.D. and until now has been used exclusively in this practice. Dr. Verghese recommends this formula for frequent travelers who want to support their liver health while traveling abroad.