L-Ornithine methyl ester dihydrochloride is primarily used in biochemical research and pharmaceutical applications. It serves as a precursor in the synthesis of various compounds, particularly in the study of amino acid metabolism and protein synthesis. This chemical is also utilized in the development of drugs targeting liver-related conditions, as ornithine plays a role in the urea cycle, aiding in ammonia detoxification. Additionally, it is employed in the production of dietary supplements aimed at improving athletic performance and recovery, leveraging its potential to enhance muscle repair and reduce fatigue. In laboratory settings, it is often used as a reagent to study enzymatic reactions and cellular processes.