Docosanedioic acid is primarily used in the production of high-performance polymers and resins. It serves as a key monomer in the synthesis of polyamides and polyesters, which are valued for their durability, thermal stability, and chemical resistance. These materials find applications in automotive components, coatings, and industrial fibers. Additionally, it is utilized in the formulation of lubricants and plasticizers, enhancing the flexibility and longevity of various products. In the cosmetics industry, it acts as an emollient and thickening agent in skincare formulations, contributing to improved texture and moisture retention. Its long carbon chain also makes it suitable for use in biomedical research, particularly in the development of drug delivery systems and biodegradable materials.