1,3-Propanediol is widely used in the production of polymers, particularly polytrimethylene terephthalate (PTT), which is valued for its elasticity, resilience, and dyeability. PTT is commonly used in textiles for carpets, upholstery, and apparel due to its softness and durability. Additionally, 1,3-propanediol serves as a solvent in various industrial applications, including inks, adhesives, and coatings, where it enhances performance and stability. It is also utilized in the cosmetics and personal care industry as a humectant and solvent, helping to retain moisture and improve the texture of products like lotions, creams, and serums. In the pharmaceutical sector, it acts as a carrier or excipient in drug formulations. Furthermore, it is used in the food industry as an additive to improve texture and moisture in products such as frozen foods and baked goods. 1,3-Propanediol is being explored as a renewable chemical in the production of biofuels and biodegradable plastics, contributing to sustainable industrial practices.