Cys-Gly, a dipeptide composed of cysteine and glycine, is primarily utilized in biochemical research and pharmaceutical applications. It serves as a substrate in enzymatic studies to understand the activity of enzymes like dipeptidases, which play a role in protein metabolism. In the pharmaceutical industry, it is explored for its potential antioxidant properties, aiding in the development of treatments for oxidative stress-related conditions. Additionally, Cys-Gly is used in the synthesis of more complex peptides and as a building block in peptide-based drug design, contributing to advancements in therapeutic interventions.