CheckVegan

Is PEI-2500 vegetarian?

PEI-2500

Vegetarian Vegetarian
Vegan Vegan

PEI-2500 is a homopolymer of aziridine (polyethyleneimine) with an average molecular weight around 2500, used in cosmetics as a film-forming and conditioning agent.

Also known as Aziridine Homopolymer, Aziridine, homopolymer, Polyethylenimine 2500
INCI name PEI-2500
CAS number 9002-98-6
CosIng ID 36440
Last reviewed 9 July 2026

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

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