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Polyoxyethylene monoeicosyl ether

CAS 67906-08-5

Also registered as 2 other CAS numbers

1297595-88-0 · 26636-39-5

Concern score

Not assessed — no hazard data yet.

Polyoxyethylene monoeicosyl ether in plain language

What it is

On cosmetic ingredient lists it appears as “ARACHIDETH-20”.

Also known as ARACHIDETH-20 · ARACHIDETH-22 · ARACHIDETH-27 · ARACHIDETH-32 · ARACHIDETH-37 · ARACHIDETH-42

Show all 17 names

ARACHIDETH-95 · 1-EICOSANOL, monoether with polyethylene glycol · Arachideth · Glycols, polyethylene, monoeicosyl ether · PEG-95 1-EICOSYL ether · PEG-95 arachidyl ether · Polyoxyethylene arachyl ether · Poly(oxy-1,2-ethanediyl), alpha-eicosyl-omega-hydroxy- · Poly(oxy-1,2-ethanediyl), α-eicosyl-ω-hydroxy- · Polyethylene glycol monoarachidyl ether · Polyethylene glycol monoeicosyl ether

What it does

Used in cosmetics as an emulsifier and a cleansing agent. Eicosanol, ethoxylated, 20 mol EO (average molar ratio).

  • Emulsifying
  • Cleansing
  • Emulsifier
  • Surfactant
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. Polyoxyethylene monoeicosyl ether appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Industrial
  • EUCosIngActive6 entries
    • Eicosanol, ethoxylated, 20 mol EO (average molar ratio)Source →
    • Arachideth-22 is the polyethylene glycol ether of Arachidyl Alcohol that conforms to the formula where n has an average value of 22.Source →
    • Arachideth-27 is the polyethylene glycol ether of Arachidyl Alcohol that conforms to the formula where n has an average value of 27.Source →
    • Arachideth-32 is the polyethylene glycol ether of Arachidyl Alcohol hat conforms to the formula where n has an average value of 32.Source →
    • Arachideth-37 is the polyethylene glycol ether of Arachidyl Alcohol that conforms to the formula where n has an average value of 37.Source →
    • Arachideth-42 is the polyethylene glycol ether of Arachidyl Alcohol that conforms to the formulawhere n has an average value of 42.Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Surfactant (surface active agent), Emulsifier.
    • EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Surfactant (surface active agent), Emulsifier.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as polymer.
    • openFDA substance registry classifies this ingredient as polymer.Source →

Expert safety opinions

No expert opinion on file for Polyoxyethylene monoeicosyl ether. 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 Polyoxyethylene monoeicosyl ether 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 January 7, 2008

    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 Polyoxyethylene monoeicosyl ether in a product composition. These are source records, not Greenveil catalog products.

Named organisations

2

Typical roles

EmulsifyingCleansingEmulsifierSurfactant
See products using Polyoxyethylene monoeicosyl ether →