Mark Lange, Ph.D., is the director of quality control for Market America; he previously served as scientific director at the Institute for Nutraceutical Advancement, an international effort to harmonize test methods for the supplement industry. Lange is holder of two patents and several peer-reviewed research articles in the areas of electrochemistry and plant chemistry. Dr. Lange has also provided consulting services to help companies establish quality systems and meet GMP requirements. For more information about Market America, please visit www.marketamerica.com.