Academic Credentials
  • M.S., Toxicology, Colorado State University, 2017
  • B.S., Psychology, University of Maryland, College Park, 2014
Additional Education & Training
  • Bayesian Benchmark Dose Modeling Workshop, October 2023
  • TERA Dose-Response Assessment Boot Camp Course, November 202
  • HESI DART Workshop: Interpretation of Developmental and Reproductive Toxicity in Regulatory Contexts and Frameworks, October 2022
  • Consumer Product Safety Commission, Household Consumer Products Association: A-Z and Beyond, September 2022
  • Toxicology Excellence in Risk Assessment, Dose-Response Assessment Boot Camp Course, November 2022
Professional Affiliations
  • American College of Toxicology, 2023 – Present
  • Institute of Food Technologists, 2023 – Present
  • Toxicology Forum, 2022 – Present
  • Society of Toxicology, 2017 – Present
  • Greek
  • Spanish

Ms. Chrysostomou is a toxicologist with over 7 years of experience conducting toxicological human health hazard assessments in the fields of pesticides, industrial chemicals, food ingredients and additives, consumer products, and pharmaceutical ingredients. In her current capacity with Exponent's Chemical Regulation & Food Safety she works as a regulatory toxicologist preparing chemical assessments, toxicological risk assessments, dose-response assessments, benchmark dose modeling analysis, and quantitative structure-activity relationship (QSAR) analysis for food ingredients, additives and contaminants, consumer products, pesticides, and industrial chemicals. She is experienced in reviewing human health safety data for food additives under FDA's generally recognized as safe (GRAS) notification program, food contact substances, and food ingredients, and preparing dossiers for regulatory submission to FDA, EFSA, and JECFA.

Ms. Chrysostomou has experience in placing, monitoring, and interpreting toxicological studies for chemicals, including products under FIFRA and TSCA, and prepares data evaluation reports and OECD study summaries. She is familiar with U.S. EPA toxicological testing requirements and waiver guidelines as well as weight of evidence evaluations for pesticides.

In her previous capacities, Ms. Chrysostomou held positions as a toxicologist subject matter expert supporting deployment-related exposure and occupational health policy within the U.S. Department of Defense, focusing on burn pit and PFAS exposures. She also has previous experience in potent compound safety assessment and occupational health categorization for active pharmaceutical ingredients.

Ms. Chrysostomou's educational background includes a Master of Science in Toxicology from Colorado State University and a Bachelor of Science in Psychology with a focus in premedical studies from University of Maryland. During her studies, she focused on clinical trial management, clinical data collection and analysis, and regulatory compliance.