The ingredient, explained

Dimethiconol

A published safety assessment explicitly covers Dimethiconol.

Ingredient guide

What it is and what it does

Dimethiconol is a silicone polymer with hydroxyl groups at the ends of its chains. Its recorded cosmetic roles include reducing unwanted foam and softening the skin surface.

About this ingredient: CIR published assessment: Dimethiconol identity and functions ↗

A verified formulation role is not on file for this name.

Registry functions describe possible formulation roles, not results for a finished product. A dictionary entry is not an approval or a safety assessment.

A closer look

What the research shows

Safety assessment

The panel judged the described uses acceptable, while identifying limited toxicokinetic, developmental and tumorigenicity data.

What this does not tell us

Published safety assessment, not an efficacy trial. Its conclusion is limited to the reported cosmetic uses and concentrations, and relies partly on group read-across where individual data are missing. It does not establish current regulatory status or guarantee tolerance for every formulation. Limited data gaps were addressed using low expected dermal absorption.

Sources for this summary. PubMed 29243542 ↗

Research review checked Oct 1, 2026

Read exact local candidate abstracts first; select identity-relevant papers; targeted primary PubMed/publisher searches. This is not an exhaustive systematic review.

Ingredient research is not proof that a product containing this ingredient works.