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PEG-9

Description

PEG-9 is a polyethylene glycol (PEG) compound widely used in cosmetic and skincare formulations. This synthetic, water-soluble ingredient functions primarily as an emollient, humectant, and solvent. With a molecular weight of approximately 400 daltons, PEG-9 consists of nine repeating ethylene oxide units, giving it unique properties that benefit various skincare products.

As an emollient, PEG-9 helps soften and smooth the skin's surface, improving texture and reducing roughness. Its humectant properties allow it to attract and retain moisture, enhancing skin hydration. In formulations, PEG-9 acts as an effective solvent, aiding in the dissolution and dispersion of other ingredients, which can improve product stability and efficacy.

PEG-9 is commonly found in cleansers, moisturizers, and hair care products due to its versatility and compatibility with many other cosmetic ingredients. It helps create a smooth, non-greasy feel in formulations and can enhance the penetration of active ingredients into the skin. While generally considered safe for topical use, individuals with sensitive skin should perform patch tests as PEG compounds can occasionally cause irritation in some users.