Glycyl-L-valine is primarily used in the field of biochemistry and medical research. It serves as a dipeptide model to study peptide synthesis and degradation processes, helping researchers understand the mechanisms of enzyme activity and protein metabolism. This compound is also utilized in the development of nutritional supplements and therapeutic agents, as it can enhance the bioavailability of amino acids, supporting muscle recovery and growth. Additionally, glycyl-L-valine is employed in studies exploring its potential role in improving gut health and immune function, making it relevant in both clinical and nutritional applications.