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Hydroxyethyl methyl cellulose

CAS 51990-47-7

Also registered as 5 other CAS numbers

457603-24-6 · 1089092-83-0 · 1884332-09-5 · 2097341-71-2 · 9032-42-2

Concern score

Not assessed — no hazard data yet.

Hydroxyethyl methyl cellulose in plain language

What it is

On cosmetic ingredient lists it appears as “Methyl hydroxyethylcellulose”.

Also known as Methyl hydroxyethylcellulose · Methyl HYDROXYETHYLCELLULOSE/PPG-14 crosspolymer · 2-Hydroxyethyl methyl cellulose · Cellulose hydroxyethyl methyl ether · Cellulose, 2-hydroxyethyl methyl ether · Culminal MHEC

Show all 17 names

Hydroxyethyl methyl cellulose (HEMC) · Hydroxyethyl methyl cellulose ether · Methyl ethyl hydroxyethyl cellulose · Methyl hydroxyethyl cellulose · Methylhydroxyethyl cellulose · Tylose MHB · Walocel MKS 8.000PP11 · hydroxyethylmethyl cellulose · hymetellose · methylhydroxyethylcellulose · methylhydroxyethylcellulosum

What it does

Used in cosmetics as an emulsion stabiliser, a light stabiliser and a thickener.

  • Emulsion stabilising
  • Light stabilizer
  • Viscosity controlling
  • Thickener
  • Film former
  • Stabiliser
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. Hydroxyethyl methyl cellulose appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Industrial
  • EUCosIngActive2 entries
    • Cellulose methyl ether, 2-hydroxyethyl etherSource →
    • Methyl Hydroxyethylcellulose/PPG-14 Crosspolymer is Methyl Hydroxyethylcellulose that has been crosslinked by a diglycidyl ether of polypropylene glycol that contains an average of 14 moles of propylene glycol.Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 13 composition records across product categories including Construction, Construction and building materials, Home maintenance. EPA CPDat classifies this chemical for functional uses including Viscosity modifier, Stabilizing agent, Adhesion/cohesion promoter.
    • EPA CPDat observed this chemical in 13 composition records across product categories including Construction, Construction and building materials, Home maintenance. EPA CPDat classifies this chemical for functional uses including Viscosity modifier, Stabilizing agent, Adhesion/cohesion promoter.Source →

Expert safety opinions

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

3 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →
  • EPA Chemical and Products Database

    exposure · updated november 17, 2016

    Open →
  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    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 Hydroxyethyl methyl cellulose in a product composition. These are source records, not Greenveil catalog products.

Source records

13

Named organisations

5

ConstructionConstruction and building materialsHome maintenanceBatteries

Typical roles

Emulsion stabilisingLight stabilizerViscosity controllingThickenerFilm formerStabiliser
See products using Hydroxyethyl methyl cellulose →

Catalog

Found in these products

Cosmetic and personal-care products that list Hydroxyethyl methyl cellulose are shown first. Their ingredient lists include Hydroxyethyl methyl cellulose; each product's own rating depends on its whole formula, so it is shown on the product page, not here.