Poly(ethylene glycol) is widely used in pharmaceuticals as a solvent, binder, and lubricant in tablet formulations. It also serves as a base for ointments and suppositories due to its water solubility and non-toxicity. In cosmetics, it acts as a lubricant and moisturizer for the skin. In the medical field, it is utilized in bioconjugation to improve the stability and solubility of therapeutic proteins, as a component in dialysis solutions, and as a carrier in some vaccines. Additionally, it is employed in drug delivery systems to enhance the bioavailability of poorly soluble drugs. In food production, it is used to improve the texture and stability of products. In industrial applications, it acts as a surfactant, dispersing agent, and antifoaming agent in various products. It is also used in the production of adhesives, coatings, and elastomers due to its flexibility and compatibility with other materials. Furthermore, it plays a role in biotechnology as a cryoprotectant for cell preservation and in molecular biology for DNA purification and precipitation.