3-hydroxy octanoic acid finds applications in the production of biodegradable plastics, particularly polyhydroxyalkanoates (PHAs), which are used as sustainable alternatives to conventional petroleum-based plastics. It serves as a monomer in the synthesis of these biopolymers, contributing to their flexibility and biodegradability. The compound is also utilized in the cosmetic and personal care industry as an ingredient in skincare formulations, where it acts as a moisturizing agent and helps improve skin texture. Additionally, it is employed in the development of bio-based lubricants and coatings, offering environmentally friendly solutions for industrial applications. Its role in the synthesis of fine chemicals and pharmaceuticals further highlights its versatility in organic chemistry and drug development.