L-Threonine is widely used in the animal feed industry as a nutritional supplement to promote healthy growth and development in livestock, poultry, and aquaculture. It is an essential amino acid that supports protein synthesis, improves feed efficiency, and enhances immune function in animals. In the pharmaceutical sector, it is utilized in the formulation of parenteral nutrition solutions and dietary supplements to address amino acid deficiencies in humans. Additionally, L-Threonine plays a role in the production of certain biopharmaceuticals and is used in microbial fermentation processes to produce enzymes and other bioactive compounds. Its application in cosmetics includes its use as a moisturizing agent and skin-conditioning ingredient in skincare products.