Christopher J. Borgert, Ph.D. is President of Applied Pharmacology and Toxicology, Inc. (APT), a consulting firm that specializes in applied research in the areas of mechanistic pharmacology and toxicology, safety assessment, and study design. Dr. Borgert also holds a courtesy faculty appointment in the Department of Physiological Sciences, University of Florida College of Veterinary Medicine. He received an Artium Baccalaurei from Kenyon College, Gambier, Ohio, a doctorate in Pharmacology and Therapeutics from the University of Florida College of Medicine and completed a postdoctoral fellowship in toxicology at the University of Florida Center for Environmental and Human Toxicology. He served on the U.S.EPA Endocrine Disruptor Screening and Testing Advisory Committee (EDSTAC) as the general representative for Small Business stakeholders, testified before Congress regarding the Endocrine Disruptor Screening Program, and served on numerous national and international expert and peer-review panels such as the Society of Toxicology Expert Panel on Chemical Mixtures and the OECD Peer-Review Panel for Validation of the Uterotrophic Assay. His publications address methods for evaluating chemical mixtures and cumulative risk assessments for human exposure to drugs, dietary supplements and chemicals; Weight of Evidence approaches and mechanistic methods for evaluating Endocrine Disruptors and carcinogens; use of kinetics in dose-setting and interpretation of toxicology studies; and perhaps most prominently, development of Human-Relevant Potency Thresholds for the screening of potential endocrine disruptors.