Proposition 65 Ingredient Review evaluates the ingredients in a cosmetic, personal care, or consumer product to identify potential compliance risks under California Proposition 65. This review helps manufacturers understand whether ingredients may trigger warning or follow-up requirements before products enter the California market.
California Proposition 65, also known as the Safe Drinking Water and Toxic Enforcement Act of 1986, requires businesses to warn consumers about exposure to certain listed chemicals. The state updates the chemical list regularly. Because of this, ingredient-level review plays an important role in early risk screening.
During a Proposition 65 Ingredient Review, analysts examine the full formulation. This review includes intentionally added ingredients, raw materials, and known impurities. Analysts compare the ingredient list against the current Proposition 65 chemical list and related regulatory references.
When an ingredient appears on the list or may contain listed contaminants, the review flags it for further consideration. This step helps brands decide whether additional testing, exposure evaluation, or risk management actions may be needed.
This service does not involve laboratory testing. Instead, it provides a structured regulatory screening using publicly available safety data and regulatory guidance. Manufacturers often use the review early in product development, during reformulation, or before selling products in California.
Because the review focuses on ingredients, it helps companies identify potential issues without committing to unnecessary testing. As a result, brands can plan next steps more efficiently.
Many companies use a Proposition 65 Ingredient Review to support internal compliance reviews and supplier qualification efforts. The review also helps guide regulatory decision-making and risk prioritization.
Brands often include this service within broader Regulatory Compliance Services and Product Safety Assessments. Guidance from the California Office of Environmental Health Hazard Assessment (OEHHA) defines the Proposition 65 chemical list and warning framework used during the review.
Overall, a Proposition 65 Ingredient Review provides a practical first step toward understanding compliance risk. By identifying potential concerns early, manufacturers reduce enforcement risk and improve confidence when selling products in California.