PEG-8 Dimethicone ●
TL;DR. This ingredient acts as a water-dispersible conditioning agent, surface-tension reducer, and emulsification aid. It helps formulas spread evenly, improves slip, and can support oil-in-water systems or clear cleansing products.
What does PEG-8 Dimethicone do in a cosmetic formula?
This ingredient acts as a water-dispersible conditioning agent, surface-tension reducer, and emulsification aid. It helps formulas spread evenly, improves slip, and can support oil-in-water systems or clear cleansing products.
Is PEG-8 Dimethicone clean?
From a clean-beauty perspective, it has friction because it combines ethoxylated processing with a synthetic Si-O polymer backbone. It is generally low-irritation when purified well, but many clean standards flag it because residual ethoxylation byproducts must be tightly controlled.
Is PEG-8 Dimethicone sustainable?
This material is synthetic, with feedstocks typically tied to petrochemical and mineral-derived inputs rather than renewable agriculture. Its polymer backbone is not readily biodegradable, so its environmental profile is weaker than that of simple plant-derived emollients or fatty alcohols.
Is PEG-8 Dimethicone COSMOS-approved?
It is not permitted under COSMOS-natural or COSMOS-organic standards. Its ethoxylated manufacture, synthetic polymer structure, nonrenewable sourcing, and limited biodegradability make it a poor fit with Green Chemistry preferences.
How does PEG-8 Dimethicone work chemically?
The molecule pairs hydrophilic polyether chains with a hydrophobic Si-O polymer backbone, which gives it both water compatibility and strong surface-spreading behavior. It is usually stable across common cosmetic pH ranges and heat-processing conditions, and it is often used in low single-digit percentages depending on whether the goal is slip, foam modification, solubilization, or emulsion support.
Last updated 2026-05-13