The Index · Polymer / thickener / film-former
Dimethiconol
Dimethiconol
Dimethiconol is a polymer used to thicken, suspend, or film-form in cosmetics.
ModerateRheology modifier or film-former; safety assessments typically focus on residual monomers and use level, not clinical actives.
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Dimethiconol is a polymer used to thicken, suspend, or film-form in cosmetics.
What it does
Builds viscosity, suspends pigments/filters, or forms a light film that changes spread and after-feel.
The evidence
Evidence grade moderate: Rheology modifier or film-former; safety assessments typically focus on residual monomers and use level, not clinical actives. Credible chemical identity and cosmetic-use context come from CIR/SCCS/manufacturer INCI definitions and databases such as SpecialChem/PubChem[1].
How to use it
Expect this as a supporting INCI line item unless labelled as a featured active.
Evidence by claim
Graded separately; the entry grade is the best-supported claim
Dimethiconol is a polymer used to thicken, suspend, or film-form in cosmetics.[1]
ModerateSafety & limits
Source and region, always
all — Used in cosmetics within conventional leave-on/rinse-off levels; see cited safety literature.[1] CA US EU UK
Sources · 2
Numbered as cited in the text
- [1]Cosmetic Ingredient Review. Cosmetic Ingredient Review safety assessment. CIR (2010)regulator
- [2]SpecialChem. SpecialChem INCI profile: Dimethiconol. SpecialChem (2024)other
Revision history
18 Sept 2026Drafted by botTheSkindex Desk