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INCI: PEG-40
A synthetic polymer of ethylene glycol, with an average of 40 repeating oxyethylene units. In cosmetics, it typically functions as a humectant, solvent, and viscosity modifier, helping to attract and retain moisture, dissolve other ingredients, and adjust product consistency.
Beneficial for
Safety summary
Generally considered safe for cosmetic use. PEGs are widely used, have low toxicity, and are non-irritating and non-sensitizing.
CAS Number
25322-68-3
For informational purposes only. This is not medical advice. Always patch test new products and consult a dermatologist for skin concerns.