Polylactic acid (PLA) is a biodegradable thermoplastic polymer widely used in the packaging industry for food containers, disposable tableware, and biodegradable bags due to its compostability and eco-friendliness as an alternative to traditional plastics. In the medical field, it is employed in biocompatible applications such as sutures, implants, and drug delivery systems that degrade safely in the body. PLA is also utilized in textiles for producing fibers in clothing and fabrics, in 3D printing for prototypes and custom parts offering sustainable manufacturing, and in cosmetics as a component in skincare products to enhance moisture and skin elasticity. Its versatility and environmental benefits make it valuable across multiple industries.