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Is Methylbutene/Piperylene Copolymer vegetarian?

Methylbutene/Piperylene Copolymer

Vegetarian Vegetarian
Vegan Vegan

Methylbutene/Piperylene Copolymer is a synthetic hydrocarbon copolymer of 2-methyl-2-butene and 1,3-pentadiene, used as a film-forming or texturizing agent in cosmetics.

Also known as 1,3-Pentadiene, Polymer with 2-Methyl-2-Butene
INCI name Methylbutene/Piperylene Copolymer
CAS number 26813-14-9
CosIng ID 58119
Last reviewed 9 July 2026

An ingredient is considered vegetarian if it avoids components derived from killing an animal.

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