The main purpose of this legislation, known as the "No PFAS in Cosmetics Act," is to prohibit the use of certain harmful chemicals called perfluoroalkyl and polyfluoroalkyl substances (often referred to as PFAS) in cosmetics. These substances are known for their potential negative effects on human health and the environment, and this law aims to protect consumers by ensuring that cosmetics do not contain these intentionally added chemicals. Key provisions of the law include a clear ban on cosmetics that contain any intentionally added PFAS.