Humectant
PEG-33
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A medium-weight polyethylene glycol — a versatile humectant, solvent, and dispersion aid. Generally safe and well-tolerated; like all PEGs needs purification to limit 1,4-dioxane traces.
Skin benefits
- Mild humectant and solvent
- Helps disperse actives
- Compatible with most formulas
- Low irritation profile
Known concerns
- Ethoxylated — possible trace 1,4-dioxane
- Use purified cosmetic grade
- Negligible skin penetration at this molecular weight
References
EU CosIng database
European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.
Related humectants
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.