Cosmetics: Introduction We tend to think of air

Introduction We tend to think of air pollution as a risk faced outside, but the air we breathe indoors can also be polluted. Smoke, vapors, mold, and chemicals used in certain paints, furnishings, and cleaners can all affect indoor air quality and our health. Buildings affect overall well-being because most people spend most of their time inside. The U.S. Environmental Protection Agency estimates Americans are indoors 90% of their time – in built environments such as homes, schools ... Learn about alternatives to animal testing, U.S. laws that require alternative consideration, and what NIEHS does to support alternative methods Cosmetics and personal care products contain a mix of chemicals. Researchers are working to better understand if any affect human health. Some of the chemicals are classified as endocrine disrupting, which means they may interfere with the body’s hormones and cause adverse health effects. Bisphenol A (BPA) is a chemical produced in large quantities for use primarily in the production of polycarbonate plastics and epoxy resins. NIEHS and NTP support research to better understand potential health effects of exposure to BPA.