Used as a lubricant and plasticizer in pharmaceuticals and cosmetics to improve texture and moisture retention. Acts as a solvent, binder, and dispersing agent in drug formulations, enhancing bioavailability of active ingredients. Employed in gene and drug delivery systems due to its biocompatibility and ability to prolong circulation time of nanoparticles. Commonly used in PEGylation processes to modify therapeutic proteins and peptides, reducing immunogenicity and increasing stability. Also utilized in tissue engineering and hydrogel formation for wound healing and regenerative medicine.