PEG-12 Dimethicone ●
TL;DR. This ingredient is a nonionic surface-active conditioning agent used to improve slip, spread, foam feel, and wet combing in skin, hair, and cleansing formulas.
What does PEG-12 Dimethicone do in a cosmetic formula?
This ingredient is a nonionic surface-active conditioning agent used to improve slip, spread, foam feel, and wet combing in skin, hair, and cleansing formulas.
Is PEG-12 Dimethicone clean?
It has clean-standard friction because it combines ethoxylated chemistry, with possible trace ethylene oxide or 1,4-dioxane if purification is poor, and a persistent synthetic siloxane backbone. It is generally low-irritation in use, but many natural-leaning standards do not allow it.
Is PEG-12 Dimethicone sustainable?
This material is synthetic, with mineral-derived silicon chemistry and petrochemical polyether segments. It is not considered readily biodegradable, so wastewater persistence is the main environmental concern.
Is PEG-12 Dimethicone COSMOS-approved?
It is not permitted under COSMOS-natural or COSMOS-organic standards. From a Green Chemistry view, it scores poorly on renewable feedstock use and biodegradability, even though it can be effective at low use levels.
How does PEG-12 Dimethicone work chemically?
The molecule is a nonionic comb polymer, with a polydimethylsiloxane backbone modified by polyether chains of roughly 12 ethylene oxide units, which increases water dispersibility versus unmodified materials in the same family. It is typically used at low percentages in rinse-off and leave-on products, is broadly pH-stable in normal cosmetic ranges, and can help compatibilize oils, water, and conditioning polymers.
Last updated 2026-05-13