L-Methionine is widely used in animal feed as a nutritional supplement to promote growth and improve overall health, particularly in poultry and livestock. It serves as an essential amino acid that supports protein synthesis and enhances muscle development. In the pharmaceutical industry, it is utilized in the production of drugs that treat liver disorders and detoxify the body by aiding in the synthesis of glutathione, a key antioxidant. Additionally, L-Methionine is employed in cosmetic formulations for its skin-repairing and anti-aging properties, helping to maintain skin elasticity and reduce signs of aging. It also plays a role in agriculture as a component of fertilizers to improve plant growth and stress resistance.