Yeast extract is widely used in the food industry as a flavor enhancer due to its rich umami taste. It is commonly added to soups, sauces, snacks, and ready-to-eat meals to improve overall flavor profiles. In the biotechnology sector, it serves as a nutrient source in microbial fermentation processes for producing antibiotics, enzymes, and other bioproducts, as well as in cell culture media to support the growth of mammalian, yeast, and other cell types in laboratory settings. Additionally, it is utilized in the production of dietary supplements and animal feed to provide essential nutrients like amino acids, vitamins, and minerals. Its natural composition makes it a preferred ingredient in clean-label and health-conscious food products. It is also employed in cosmetics for its antioxidant properties and ability to promote collagen synthesis in skin care formulations.