Pepsin is widely used in the food industry for the production of protein hydrolysates, which are essential ingredients in dietary supplements, sports nutrition, and infant formulas. It aids in breaking down complex proteins into smaller peptides, enhancing digestibility and nutrient absorption. In the pharmaceutical sector, pepsin is utilized in digestive enzyme preparations to treat conditions like indigestion and hypochlorhydria, where the stomach produces insufficient acid. Additionally, it plays a role in research laboratories for protein analysis and peptide mapping, helping scientists study protein structure and function. Pepsin is also employed in the leather industry to remove hair and residual tissue from animal hides during the tanning process, ensuring a cleaner and more refined end product.