Duffy served as the lead toxicologist for the EPA’s Safer Choice Program beginning in 2017. She evaluated the safety of ingredients in cleaning products and other consumer goods. Now, as the chief toxicologist for EWG Verified, Duffy brings her deep scientific expertise and regulatory experience to strengthen the program’s rigorous standards.

She plays a central role in ensuring that every EWG Verified product meets the highest benchmarks for health and safety while also maintaining the integrity of the program and reinforcing consumer trust.