PEG-33 at a Glance
- Lightweight, skin-friendly polymer
- Helps draw and hold moisture within skin
- Enhances formulary stability
- Works as a non-irritating solvent
PEG-33 Description
PEG-33 is the synthetic polymer of ethylene oxide used as a binding agent and humectant. With any PEG (polyethylene glycol) ingredient followed by a number, the lower the number, the lighter the ingredient. Thus, PEG-33 will feel lighter on skin than PEG-200.
Among many other PEG-based ingredients, PEG-33 is considered safe as currently used in a broad range of rinse-off and leave-on cosmetics.
PEG-33 References
Toxicological Research, June 2015, pages 105–136
International Journal of Toxicology, November 2014, pages 13S–39S; and International Journal of Toxicology, May 1997, pages 269–300
Peer-reviewed, substantiated scientific research is used to assess ingredients in this dictionary. Regulations regarding usage constraints, permitted concentration levels and availability vary by country and region.