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Montmorillonite

CAS 110070-78-5

Also registered as 21 other CAS numbers

12199-64-3 · 12414-99-2 · 12656-86-9 · 50925-68-3 · 51811-27-9 · 61029-13-8 · 61711-53-3 · 64418-14-0 · 67479-91-8 · 111744-70-8 · 121181-40-6 · 252254-66-3 · 376359-98-7 · 405157-26-8 · 850354-49-3 · 1160357-96-9 · 1370352-97-8 · 1428381-06-9 · 1587636-97-2 · 1593119-81-3 · 1318-93-0

Montmorillonite chemical structure

Concern score

Not assessed — no hazard data yet.

Montmorillonite in plain language

What it is

Also known as Diosmectite · Montmorillonite clay · Albagen 4439 · Aquaset · Arcillite · Bedelix

Show all 17 names

Ben-A-Gel · Ben-A-Gel EW · Benclay MK 101 · Gelwhite gp · Gelwhite h · Gelwhite l · Smecdral · Smecta · activated montmorillonite clay · clay · montmorillonite k 10

What it does

Used in cosmetics as an abrasive, an absorbent and a bulking agent. Montmorillonite is a complex aluminum/magnesium silicate clay.

  • Abrasive
  • Absorbent
  • Bulking
  • Emulsion stabilising
  • Light stabilizer
  • 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. Montmorillonite appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Beauty
  • Cleaning
  • Industrial
  • EUCosIngActiveMontmorillonite is a complex aluminum/magnesium silicate clay
    • Montmorillonite is a complex aluminum/magnesium silicate claySource →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 148 composition records across product categories including Construction and building materials, Specialty occupational products, Personal care. EPA CPDat classifies this chemical for functional uses including Absorbent, Emulsifier, Viscosity modifier.
    • EPA CPDat observed this chemical in 148 composition records across product categories including Construction and building materials, Specialty occupational products, Personal care. EPA CPDat classifies this chemical for functional uses including Absorbent, Emulsifier, Viscosity modifier.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for Montmorillonite. 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 Montmorillonite yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

5 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →
  • EPA Chemical and Products Database

    exposure · updated September 2018

    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 →

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 Montmorillonite in a product composition. These are source records, not Greenveil catalog products.

Source records

148

Named organisations

6

Construction and building materialsSpecialty occupational productsPersonal careLaboratory suppliesCleaning and safetyIndustrial products

Typical roles

AbrasiveAbsorbentBulkingEmulsion stabilisingLight stabilizerViscosity controlling
See products using Montmorillonite →

Catalog

Found in these products

Their ingredient lists include Montmorillonite; each product's own rating depends on its whole formula, so it is shown on the product page, not here.