Thickener
PIPERYLENE/BUTENE/PENTENE COPOLYMER
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A hydrocarbon copolymer built from piperylene (1,3-pentadiene), butene, and pentene — used to thicken and form films. Largely inert in bulk, but limited public toxicology data anchors this to a cautious Fine tier.
Function
Skin benefits
- Provides viscosity control and flexibility
- Forms durable hydrocarbon films
- Improves wear time in cosmetic coatings
Known concerns
- Residual diene monomers (piperylene) of unknown purity
- Inadequate toxicology data specific to this INCI
- Hydrocarbon polymers can carry process-related impurities
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related thickeners
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.