What does Quaternium 18-bentonite do?

Used in cosmetics as a thickener. Quaternary ammonium compounds, bis(hydrogenated tallow alkyl)dimethyl, salts with bentonite.

Is Quaternium 18-bentonite safe?

We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

beauty
industrial

Quaternium 18-bentonite

CAS 81544-81-2

Also registered as 2 other CAS numbers

1340-69-8 · 68953-58-2

Quaternium 18-bentonite chemical structure

Concern score

Not assessed — no hazard data yet.

Quaternium 18-bentonite in plain language

What it is: On cosmetic ingredient lists it appears as “QUATERNIUM-18 bentonite”.
Also known as QUATERNIUM-18 bentonite · Bentoquatam · Bentone · Bentonite · Organoclay · dioxosilane;oxo(oxoalumanyloxy)alumane;hydrate
Show all 23 names
Bentone 27 · Bentone 34 · Bentonite Nanoclay · calcian-sodian Bentonite · sodium form Bentonite · Claytone 40 · Claytone so · HI-Jel · Ivy block · Tixogel mp · Tixogel mp - 100 · Tixogel te · Tixogel VP · Tixosorb · UNII-A3N5ZCN45C · aluminosilicate hydrate · dimethyldioctadecylammonium montmorillonite
What it does: Used in cosmetics as a thickener. Quaternary ammonium compounds, bis(hydrogenated tallow alkyl)dimethyl, salts with bentonite.
Viscosity controlling
Is it a concern?: We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

Regulation

No restrictions found. Quaternium 18-bentonite appears in these published regulatory listings.

Recorded in these product areas

Found in consumer products
Industrial

EUCosIngActiveQuaternary ammonium compounds, bis(hydrogenated tallow alkyl)dimethyl, salts with bentonite
- Quaternary ammonium compounds, bis(hydrogenated tallow alkyl)dimethyl, salts with bentoniteSource →
USEPAcommercial use observedEPA CPDat observed this chemical in 0 composition records across product categories including unclassified products.
- EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as mixture.
- openFDA substance registry classifies this ingredient as mixture.Source →

Expert safety opinions

No expert opinion on file for Quaternium 18-bentonite. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

SCCS
EU Scientific Committee on Consumer Safety
No SCCS opinion on file.
CIR
Cosmetic Ingredient Review (US expert panel)
No CIR safety assessment on file.

Evidence & sources

No graded research studies for Quaternium 18-bentonite yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

6 data sources

Where this comes from

CosIng
regulatory · updated 2026-09-23
Open →
EPA Chemical and Products Database
exposure · updated 2020-08-31
Open →
EPA DSSTox Identifiers
chemistry · updated 2025-12-29
Open →
FDA GSRS UNII
registry · updated 2026-02-26
Open →
openFDA Substance
registry · updated 2026-05-24
Open →
PubChem Live Enrichment
chemistry · updated 2026-05-17
Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

How often EPA CPDat has listed Quaternium 18-bentonite in a product composition. These are source records, not Greenveil catalog products.

Named organisations

Typical roles

Viscosity controlling

See products using Quaternium 18-bentonite →