Cholesteryl stearate is widely used in the cosmetic and pharmaceutical industries due to its emulsifying and stabilizing properties. In skincare products, it helps to create smooth, stable formulations by improving texture and consistency. It is often found in creams, lotions, and ointments, where it enhances moisturization and provides a protective barrier on the skin.

In pharmaceuticals, it is utilized as an excipient in drug delivery systems, particularly in lipid-based formulations. It aids in the controlled release of active ingredients and improves the bioavailability of poorly soluble drugs. Additionally, cholesteryl stearate is used in research as a component in model membranes to study lipid behavior and interactions in biological systems. Its role in stabilizing liposomes and other lipid nanoparticles makes it valuable in developing advanced drug delivery technologies.