I provide expert witness services for litigation involving PFAS (per- and polyfluoroalkyl substances), heavy metals, microbial contamination, and other chemical or physical adulterants in cosmetic and OTC personal care products. These matters require an expert who can bridge formulation chemistry, analytical testing methodology, regulatory standards, and manufacturing practice — a combination that defines my professional background.
PFAS and heavy metal contamination in cosmetics has become one of the most active litigation areas in the personal care industry, driven by third-party testing studies, consumer class actions, and increasing regulatory scrutiny. My chemistry training and industry experience allow me to evaluate the source of contamination, assess the adequacy of manufacturer testing programs, and analyze causation and consumer exposure in a litigation context.
I hold a PhD in Organic Chemistry from Johns Hopkins University and serve as Vice President of R&D for a cosmetic contract manufacturer. My technical background in organic and analytical chemistry, combined with hands-on experience managing raw material qualification, stability programs, and finished product testing in a GMP manufacturing environment, provides a strong foundation for expert analysis in contamination matters.
I have reviewed analytical testing data, interpreted third-party laboratory reports, and evaluated manufacturer quality systems in the context of litigation. I am familiar with the testing methodologies commonly used in PFAS and heavy metals litigation, including ICP-MS, ICP-OES, and LC-MS/MS techniques.
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Shelburne, VT • Nationwide Engagements
Phone: 610-246-5600
LinkedIn: linkedin.com/in/ethan-ad-phd
JurisPro: jurispro.com/expert/ethan-alden-danforth-9364