N-Acetyl-DL-serine is primarily utilized in biochemical research as a building block for peptide synthesis. It serves as a precursor in the production of more complex peptides and proteins, aiding in the study of their structure and function. Additionally, it is employed in the development of pharmaceutical compounds, particularly in the formulation of drugs that target neurological disorders. Its role in modulating neurotransmitter activity makes it valuable in neuroscience research. Furthermore, N-Acetyl-DL-serine is used in cosmetic formulations for its moisturizing and skin-conditioning properties, contributing to the enhancement of skin hydration and elasticity.