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PEG-4, or polyethylene glycol 4, is a synthetic polymer derived from ethylene oxide. It is commonly used in various cosmetic and pharmaceutical formulations due to its hydrophilic properties, which help to enhance moisture retention and improve the texture of products. PEG-4 can also serve as a solvent, emulsifier, or thickening agent in formulations. Its safety and efficacy make it a popular choice in personal care products.

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2w ago

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