Dr. Hayes is a toxicologist with more than 35 years of experience in industry and academics. He is a Senior Science Advisor at ChromaDex Spherix Consulting, providing strategic, scientific and regulatory guidance. Dr. Hayes also holds appointments at the Harvard School of Public Health as a Visiting Scientist and with the School of Public Health, University of Massachusetts, Amherst as a Research Professor. Previously, Dr. Hayes held the positions of Vice President and Corporate Toxicologist for RJR Nabisco, and Corporate Vice-President of Product Integrity at the Gillette Company. Dr. Hayes previously served on the CTFA Research Council, addressing issues related to flavors and fragrances. Dr. Hayes has interacted with regulatory bodies worldwide including Canada, Japan, South Korea, EU and Latin America as well as the US FDA. the US EPA and the US DOD. Dr Hayes is currently a member of the Food Advisor Committee, US Food and Drug Administration.