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[Chemical Knowledge]：What is polyethylene glycol 400?

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Polyethylene glycol 400 is a polymer compound, is a member of the polyethylene glycol family. It is a polymer composed of continuous ethylene glycol molecules, mainly used in the field of medicine. Polyethylene glycol 400 can help the drug to better disperse and dissolve in the human body, improve the bioavailability of the drug, and also increase the half-life and excretion half-life of the drug, so that the effect of the drug is longer lasting.

In medical practice, polyethylene glycol 400 are usually used as solvents or sustained release agents for drugs. It can also be used as a protective agent for biological products such as proteins, which can prevent them from being oxidized or degraded during storage and transportation. In addition, polyethylene glycol 400 can also be used as an efficient solubilizer to dissolve some water-insoluble substances into water, making it easier to be absorbed by the human body. The solubility of

polyethylene glycol 400 is very good and can be miscible with a variety of compounds. Its molecular weight is relatively high, generally around 400, so it can form a solution with considerable physical and chemical stability. In the process of drug research and development, polyethylene glycol 400 is often selected as a solvent or additive to increase the solubility and stability of the drug, thereby improving the bioavailability and therapeutic effect of the drug.

polyethylene glycol 400 are also widely used in cosmetics and personal care products. Because it has excellent moisturizing and lubricating properties, it can enhance the moisturizing effect of cosmetics and personal care products, and will not bring greasy feeling to the skin. In addition, polyethylene glycol 400 is also an excellent surfactant, which can make cosmetics and personal care products easier to use and clean.

polyethylene glycol 400 is an important polymer, which is widely used in medicine, cosmetics and personal care products. It can increase the bioavailability of drugs, release drugs, protect biological products, enhance the moisturizing and lubricating effects of cosmetics and personal care products, and has extremely high application value. With the continuous improvement of people's requirements for medicine and personal care products, the application prospect of polyethylene glycol 400 will be more and more broad.

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