Nearly 100 personal care products are in violation of a California law requiring that consumers be warned about the presence of cancer-causing chemicals, says an environmental nonprofit in Oakland. Tests ordered by an environmental watchdog group revealed the presence of a cancer-causing chemical in dozens of personal care products that lack a warning label required by California law. The compound, a chemically modified form of coconut oil—cocamide diethanolamine (cocamide DEA)—is used as a foaming agent or thickener in soaps, shampoos, conditioners, and similar products.

No Warning Labels An independent laboratory commissioned by the Center for Environmental Health (CEH) tested the products to determine how much cocamide DEA was present. CEH purchased these products after June 2013 from online and local California retailers, such as Trader Joe’s, Walmart, Kohl’s, and Babies R Us. Many of the products tested contained more than 10,000 parts per million (ppm) of cocamide DEA. In all, CEH identified 98 products with cocamide DEA among the ingredients, none of which carried the warning required by state law. “The state has not set a [safety] level specific to cocamide DEA,” says Charles Margulis, Communications Director and Food Program Director of CEH, “but the levels we found exceed levels typical for carcinogens.” To comply with California’s Proposition 65, companies are still required to provide a “clear and reasonable” warning to consumers when products they sell or produce contain chemicals listed by the state as harmful. This includes compounds known to cause cancer or birth defects. Cocamide DEA was added to the California list of harmful chemicals in 2012 after the International Agency for Research on Cancer (IARC) published its review of the chemical’s safety, which was based upon skin exposure tests in animals. “There is sufficient evidence in experimental animals for the carcinogenicity of coconut oil diethanolamine condensate,” the agency writes.