1,2-Nonanediol is widely used in the cosmetics and personal care industry as a moisturizing agent and preservative. It helps to maintain skin hydration by attracting and retaining moisture, making it a common ingredient in lotions, creams, and serums. Additionally, its antimicrobial properties make it effective in preventing the growth of bacteria and fungi, extending the shelf life of cosmetic products. It is also utilized in hair care formulations to improve texture and manageability. In some cases, it serves as a solvent or stabilizer in various formulations, enhancing the performance and consistency of the final product. Its mild and non-irritating nature makes it suitable for sensitive skin applications.