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Formaldehyde, polymer with 1-phenylethanone

CAS 119574-03-7

Also registered as 1 other CAS number

25398-55-4

Concern score

Not assessed — no hazard data yet.

Formaldehyde, polymer with 1-phenylethanone in plain language

What it is

On cosmetic ingredient lists it appears as “Acetophenone/oxymethylene copolymer”.

Also known as Acetophenone/oxymethylene copolymer · Acetophenone, polymer with formaldehyde · Acetophenone-Formaldehyde polycondensate · Acetophenone-formaldehyde copolymer · Acetophenone-formaldehyde polymer · Ethanone, 1-phenyl-, polymer with formaldehyde

Show all 8 names

Halon 80 · Polymer, formaldehyde with 1-PHENYLETHANONE

What it does

Used in cosmetics as a nail conditioning agent, a film former and a thickener. Acetophenone/Oxymethylene Copolymer is the copolymer formed by the condensation of Acetophenone with formaldehyde.

  • Nail conditioning
  • Film forming
  • Viscosity controlling
  • Thickener
  • Film former
  • Conditioner
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. Formaldehyde, polymer with 1-phenylethanone appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Industrial
  • EUCosIngActiveAcetophenone/Oxymethylene Copolymer is the copolymer formed by the condensation of Acetophenone with formaldehyde.
    • Acetophenone/Oxymethylene Copolymer is the copolymer formed by the condensation of Acetophenone with formaldehyde.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 Film former, Viscosity modifier, Softener and conditioner.
    • EPA CPDat observed this chemical in 0 composition records across product categories including unclassified products. EPA CPDat classifies this chemical for functional uses including Film former, Viscosity modifier, Softener and conditioner.Source →

Expert safety opinions

No expert opinion on file for Formaldehyde, polymer with 1-phenylethanone. 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 Formaldehyde, polymer with 1-phenylethanone 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 2019-12-20

    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 Formaldehyde, polymer with 1-phenylethanone in a product composition. These are source records, not Greenveil catalog products.

Named organisations

1

Typical roles

Nail conditioningFilm formingViscosity controllingThickenerFilm formerConditioner
See products using Formaldehyde, polymer with 1-phenylethanone →