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The ingredient, explained

Pvp

PVP has published research relevant to cosmetic safety assessment.

AntistaticBindingEmulsion stabilisingFilm formingHair fixingViscosity controlling
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Ingredient guide

What it is and what it does

2-Pyrrolidinone, 1-ethenyl-, homopolymer

About this ingredient: EU CosIng ingredient registry (via Open Beauty Facts taxonomy) ↗

Antistatic
Reduces the build-up of static electrical charge on surfaces.
Binding
Helps the components of a product hold together.
Emulsion stabilising
Helps keep an emulsion from separating.
Film forming
Leaves a continuous layer on skin, hair or nails after application.
Hair fixing
Helps hold hair in a chosen style.
Viscosity controlling
Adjusts how thick or fluid a product is.

Function definitions: European Commission ingredient function definitions (SCCNFP/0299/00, pages 16 to 20) ↗

Registry functions describe possible formulation roles, not results for a finished product. A dictionary entry is not an approval or a safety assessment.

A closer look

What the research shows

Safety assessment

The report reviews polymer toxicology and dermal tests, including undiluted PVP K-30 clinical irritation and sensitization testing.

What this does not tell us

Historical cosmetic safety assessment with route-specific systemic findings and some read-across from povidone-iodine. It does not attribute antiseptic effects of iodine complexes to PVP.

Sources for this summary. DOI 10.1177/109158189801700408 ↗

Research review checked Oct 1, 2026

Selective exact-identity review of 4 supplied local candidates and the targeted primary-source search recorded below. Bounded review, not a systematic search.

Ingredient research is not proof that a product containing this ingredient works.

Read the 1 selected study

Follow the formula

Products containing this ingredient

All 32 products ↗

From the wider catalogue. Linked by the ingredient list, without an efficacy ranking.

Names and identifiers

Registry identity

2-Pyrrolidinone, 1-ethenyl-, homopolymer

INCI name on ingredient lists
PVP
CAS registry number
9003-39-8
Other recorded names (2)
  • crospovidone
  • povidonum

Sources for this ingredient record