Polyethylene glycol and polyethylene glycol fatty acid esters are widely used in the cosmetic and pharmaceutical industries. Because polyethylene glycol has many excellent properties:
Water - soluble, non - volatile, physiological inertia, mild, lubricity and make the skin moist, soft, pleasant after use. The viscosity, hygroscopicity and microstructure of the product can be changed by using polyethylene glycol with different molecular weight grades.
Polyethylene glycol (Mr<2000) with low molecular weight is suitable for use as a wetting agent and consistency modifier, for creams, lotions, toothpastes and shaving creams, etc. It is also suitable for uncleaned hair care products to give hair luster.
Polyethylene glycol (Mr>2000) with high molecular weight is suitable for lipstick, deodorant bar, soap, shaving soap, foundation and cosmetic products. In detergents, PEG is also used as a suspension and thickener.
Used in the pharmaceutical industry as a substrate for ointments, emulsions, ointments, lotions, and suppositories. Polyethylene glycol (e.g. PolyethyleneGlycolNF, DowchemicalCo.) which is marketed under food and drug use is also healthier for cosmetics.
The use of methoxy polyethylene glycol and polypropylene glycol is similar to that of polyethylene glycol. Polyethylene glycol is widely used in a variety of pharmaceutical preparations such as injections, topical preparations, ophthalmic preparations, oral and rectal preparations.
Solid grade POLYETHYLENE glycol can be added to liquid polyethylene glycol to adjust viscosity and used locally in ointments; The polyethylene glycol mixture can be used as a suppository matrix; The aqueous solution of polyethylene glycol can be used as suspension aid or to adjust the viscosity of other suspension media. Polyethylene glycol is used in combination with other emulsifiers to increase the stability of the emulsion.
In addition, POLYETHYLENE glycol is also used as film coating agent, tablet lubricant, controlled release material, etc.