DL-m-Tyrosine is used in research settings to study amino acid metabolism and neurotransmitter synthesis. It serves as an intermediate in the development of pharmaceutical compounds, particularly those targeting neurological pathways. Due to its structural similarity to natural tyrosine isomers, it is employed in experiments exploring enzyme specificity and inhibition. It is also utilized in cell culture media formulations where controlled amino acid composition is required for consistent experimental results. Additionally, DL-m-Tyrosine finds use in the synthesis of peptides and proteins with modified biological activity for drug discovery and biochemical assays.