L-Lysine is widely used in the food industry as a nutritional supplement to enhance the protein quality of various food products, especially in cereals and baked goods. It is also added to animal feed to promote growth and improve overall health in livestock and poultry. In the pharmaceutical sector, L-Lysine is utilized in the formulation of dietary supplements and medications aimed at supporting immune function, managing herpes simplex virus outbreaks, and aiding in calcium absorption for bone health. Additionally, it plays a role in cosmetic products, where it is incorporated into skincare formulations to support collagen production and improve skin elasticity. Its versatile applications make it a valuable compound in multiple industries.