Glycerol trienanthate is primarily used in the formulation of cosmetics and personal care products due to its emollient properties. It helps to soften and smooth the skin by forming a protective barrier that locks in moisture. This makes it a valuable ingredient in lotions, creams, and moisturizers aimed at improving skin hydration and texture. Additionally, it is utilized in hair care products to condition and add shine to hair, reducing frizz and enhancing manageability. Its non-greasy texture and compatibility with other ingredients make it a versatile component in various skincare and haircare formulations. It also finds applications in pharmaceutical formulations as a solvent and emollient.