Polylactic acid (PLA) is a biodegradable and compostable thermoplastic made from renewable resources like corn starch or sugarcane. It is widely used in 3D printing, packaging, and disposable items due to its environmentally friendly properties. PLA is known for its ease of processing and ability to be molded into various shapes. PLA is produced through the fermentation of sugars to create lactic acid, which is then polymerized into long chains. This process results in a material that can break down naturally over time, making it a popular alternative to traditional petroleum-based plastics. Its applications continue to grow in various industries.