WHO WE ARE

RETRA is a scientific consulting firm specializing in environmental health sciences, toxicology, and risk assessment.

Our experts deliver scientific guidance on the evaluation of human health risks associated with environmental and product-related exposures, helping clients navigate complex regulatory frameworks and manage associated compliance and litigation risks. We provide scientific insight and extensive experience across environmental, occupational, and consumer product sectors.

Core capabilities include human health risk assessment (HHRA), exposure assessment, Proposition 65 compliance support, regulatory toxicology, and related scientific support for litigation.

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