Ethyl arachidonate is primarily used in research and development within the fields of biochemistry and nutrition. It serves as a precursor for the synthesis of various bioactive lipids, including prostaglandins and leukotrienes, which play critical roles in inflammation and immune responses. This compound is often utilized in studies focusing on lipid metabolism and the development of therapeutic agents targeting inflammatory diseases. Additionally, it is employed in the formulation of dietary supplements aimed at supporting cardiovascular health and reducing inflammation. Its application extends to the cosmetic industry, where it is incorporated into skincare products for its potential anti-inflammatory and skin-soothing properties.