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2-Pyrrolidinone, 1-ethenylhexadecyl-, homopolymer

CAS 32440-50-9

Also registered as 1 other CAS number

63231-81-2

Concern score

Not assessed — no hazard data yet.

2-Pyrrolidinone, 1-ethenylhexadecyl-, homopolymer in plain language

What it is

On cosmetic ingredient lists it appears as “Vp/hexadecene copolymer”.

Also known as Vp/hexadecene copolymer · Poly(vinylpyrrolidone-1-hexadecene) · vp/hexadecene copolmyer

What it does

Used in cosmetics as a hair fixative, a binder and a dispersing non-surfactant. VP/Hexadecene Copolymer is a polymer of Hexadecene and N-Vinyl Pyrrolidone monomers.

  • Hair fixing
  • Binding
  • Dispersing non-surfactant
  • Film forming
  • 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. 2-Pyrrolidinone, 1-ethenylhexadecyl-, homopolymer appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Beauty
  • EUCosIngActiveVP/Hexadecene Copolymer is a polymer of Hexadecene and N-Vinyl Pyrrolidone monomers.
    • VP/Hexadecene Copolymer is a polymer of Hexadecene and N-Vinyl Pyrrolidone monomers.Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 2 composition records across product categories including Personal care.
    • EPA CPDat observed this chemical in 2 composition records across product categories including Personal care.Source →

Expert safety opinions

No expert opinion on file for 2-Pyrrolidinone, 1-ethenylhexadecyl-, homopolymer. 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 2-Pyrrolidinone, 1-ethenylhexadecyl-, homopolymer 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 january 28, 2019

    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 2-Pyrrolidinone, 1-ethenylhexadecyl-, homopolymer in a product composition. These are source records, not Greenveil catalog products.

Source records

2

Named organisations

2

Personal care

Typical roles

Hair fixingBindingDispersing non-surfactantFilm formingViscosity controlling
See products using 2-Pyrrolidinone, 1-ethenylhexadecyl-, homopolymer →

Catalog

Found in these products

Cosmetic and personal-care products that list 2-Pyrrolidinone, 1-ethenylhexadecyl-, homopolymer are shown first. Their ingredient lists include 2-Pyrrolidinone, 1-ethenylhexadecyl-, homopolymer; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 110 →Find products without it →