Diethyl Phthalate (DEP) is a colorless, odorless liquid commonly used as a plasticizer, which helps to make plastics more flexible and durable. It is often found in products like vinyl flooring, adhesives, and personal care items such as perfumes and lotions. DEP is part of a larger group of chemicals known as phthalates, which are used to enhance the performance of various materials. While DEP is generally considered safe for use in consumer products, there are ongoing discussions about the potential health effects of phthalates in general. Some studies suggest that exposure to high levels of these chemicals may disrupt hormonal systems, leading to concerns about their impact on human health and the environment.