Under California's Safe Drinking Water and Toxic Enforcement Act, better known as OEHHA Prop 65, we are required to place a warning to this product since the OEHHA believes that Diethanolamine (DEA) that is contained in trace amounts in Triethanolamine (TEA) may cause cancer even though all of the available scientific data clearly suggest that there is insufficient epidemiological or toxicological evidence to say that either of these substances would be a human carcinogen as stated by the Personal Care Products Council, CropLife America, the American Chemistry Council, the America Cleaning Institute, the Chemical Producers & Distributors Association, and the Consumer Specialty Products Association (CSPA). In addition, IARC (The International Agency for Research on Cancer from the World Health Organization) concluded that there is inadequate evidence in humans for the carcinogenicity of diethanolamine and EPA (The United States Environmental Protection Agency) has not classified diethanolamine for carcinogenicity. WARNING: This product can expose you to chemicals including Diethanolamine, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov