10-Hydroxydecanoic acid is primarily used in the synthesis of biopolymers, particularly in the production of polyesters and polyamides. It serves as a key monomer in creating biodegradable plastics, which are increasingly important in reducing environmental pollution. Additionally, this compound is utilized in the formulation of cosmetics and personal care products, where it acts as an emollient and moisturizer, helping to improve skin hydration and texture. In the pharmaceutical industry, it is employed as an intermediate in the synthesis of various drugs, including those with antimicrobial and anti-inflammatory properties. Its ability to form stable esters also makes it valuable in the development of lubricants and surfactants for industrial applications.