General Product Issues The large diversity of Procter & Gamble's brands and the size of our global business means that we are often asked about the safety of some chemicals we use in our products. Here we address some of the more general questions that we receive.   Use of Substances of Concern (e.g., PBTs, CMRs, POPs) Throughout the world, government authorities have identified "priority chemicals" or "chemicals of concern," based on their properties and potential hazards. These chemicals are often closely examined regarding their risks to people and the environment, and their use is sometimes being limited. How does P&G regard the use of such substances in its products? Read More about the Use of Substances of Concern.