Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone



No known benefits

Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone description

Lauryl PEG-9 polydimethylsiloxyethyl dimethicone is a silicone polymer that plays multiple roles in skin care, hair care, makeup, and other hygiene/beauty product formulations. It offers conditioning properties that can help soften skin or hair. It may also be used as a viscosity adjusting agent to enhance the formula’s texture. Other functions include emulsifier and surfactant (cleansing agent). Lauryl PEG-9 polydimethylsiloxyethyl dimethicone may be plant-derived or synthetic. It’s described as colorless to light brown, transparent to slightly hazy liquid. Manufacturers of this ingredient note its good compatibility/solubility with other silicones, oils, and esters. It’s also extolled as part of a blend that enhances the dispersion of mineral sunscreen actives to achieve reliable, uniform UV protection. Lauryl PEG-9 polydimethylsiloxyethyl dimethicone has been deemed safe by the Cosmetic Ingredient Review Expert Panel. Their 2015 report looked at products containing between 0.2-6% of this ingredient.

Lauryl PEG-9 Polydimethylsiloxyethyl Dimethicone references

  • Kobo (supplier info), Accessed June 2022, ePublication
  • ShinEtsu (supplier info), Accessed June 2022, ePublication
  • Cosmetic Ingredient Review, January 2015, pages 1-46

Peer-reviewed, substantiated scientific research is used to assess ingredients in this dictionary. Regulations regarding constraints, permitted concentration levels and availability vary by country and region.

Ingredient ratings


Proven and supported by independent studies. Outstanding active ingredient for most skin types or concerns.


Necessary to improve a formula's texture, stability, or penetration.


Generally non-irritating but may have aesthetic, stability, or other issues that limit its usefulness.


There is a likelihood of irritation. Risk increases when combined with other problematic ingredients.


May cause irritation, inflammation, dryness, etc. May offer benefit in some capability but overall, proven to do more harm than good.


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Not rated