PEG-4
Is PEG-4 safe for seborrheic dermatitis?
PEG-4 is generally suitable within the cosmetic uses reviewed. Its humectant and solvent functions support a formula’s moisture and mixing properties, without establishing relief of seb derm.
The checked evidence did not establish an independent human seb derm benefit or applicable Malassezia effect for PEG-4. Findings about another PEG derivative, or an ointment used on extensively damaged skin, should keep those specific limits. Consider the complete product and its intended exposure, and ask for advice about persistent irritation.
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What is it?
A quick identity check, separate from the seb derm guidance above.
01 / 05- Material type
- Cosmetic formulation material
- Cosmetic function
- Humectant, Solvent
What is PEG-4 used for in skincare?
PEG-4 is a polyethylene-glycol material with an average of four ethylene-oxide units. It is assigned humectant and solvent roles. The numbered identity is different from PEG-4 fatty-acid esters, which have additional chemical components and require their own evidence matching.