Official EU label nameGlossary entry 16867

MONTMORILLONITE

This record confirms an official common ingredient name for EU cosmetic product labelling. It does not by itself confirm that the substance is permitted, unrestricted or safe.

Global evidence snapshot

The resolved identity has matching regulatory evidence in 0 of 13 indexed market datasets: 0 country records and 0 EU Annex records. Every result and evidence gap is listed below.

0 markets with evidence

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Markets with evidence

Evidence gaps

Resolved identifiers

Resolved substance identity

CAS:1318-93-0

EC:215-288-5

Ingredient index records:

MONTMORILLONITE

Cosmetic functions: ABSORBENT, BULKING, EMULSION STABILISING, LIGHT STABILIZER, VISCOSITY CONTROLLING

Montmorillonite

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1 matched or reported name

MONTMORILLONITE

Regulatory evidence across markets

None of the 13 markets tracked here holds an imported rule under the name MONTMORILLONITE.

That is a statement about this inventory, not about the law: no imported rule is not evidence that a substance is permitted. A rule may exist under a different name, under a CAS or EC number this glossary entry does not carry, or in a dataset not yet imported.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 1318-93-0

CAS 1318-93-0PubChem CID 71586775

Bentonite

Montmorillonite is a subclass of smectite and a natural aluminomagnesium silicate clay, with potential protective effect for the digestive tract mucosa, and anti-inflammatory and anti-diarrheal activities. Although the exact mechanism of action has yet to be fully elucidated, upon administration, montmorillonite may adsorb bacteria, bacterial enterotoxins, viruses and other potentially diarrheagenic substances. It may also bind to mucin and modify mucus properties, thereby enhancing the mucus barrier function. — NCI Thesaurus (NCIt)

IUPAC name: dialuminum;tetrakis(dioxosilane);tris(oxygen(2-));hydrate

Molecular formula: Al2H2O12Si4
Molecular weight: 360.31 g/mol
Exact mass: 359.825408 Da
Topological polar surface area: 141.0 Å²
Hydrogen-bond donors: 1
Hydrogen-bond acceptors: 12
Covalent units: 10
Defined stereocentres: 0

Also known as

WilkoniteAlum bentoniteBentonite magmaColloidal clayA3N5ZCN45Caluminum silicate hydratealuminium silicate hydrateINS NO.558

16 more reported names

INS-558Ci 77004E-558BentonitumGZE Indian Healing ClayRefChem:159664CHEBI:133354215-108-5250MAccofloc 352Accugel FAEG 325AkajoAlbagel Premium USP 4444Altonit SFAquagel

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External database identifiers

PubMed:40268267
PubMed:26115597
PubMed:25296281
PubMed:22750351

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Additional authoritative substance research

Each link searches that source for this identity. A link is a research route, not a claim that the source holds an exact record. What each source is, and its legal weight

Cosmetic Ingredient Review safety assessments FDA Global Substance Registration System ILO/WHO International Chemical Safety Cards Japan NITE-CHRIP NIOSH Pocket Guide to Chemical Hazards OECD eChemPortal US EPA CompTox CTX APIs

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Official source and scope

Imported from Commission Implementing Decision (EU) 2025/1175 (dataset version EU 2025/1175). The glossary supplies common ingredient names for the ingredient list required by Article 19(1)(g); it is not an approval or safety list.

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