CheckVegan

Is PEI-1500 vegetarian?

PEI-1500

Vegetarian Vegetarian
Vegan Vegan

PEI-1500 is a synthetic polymer of aziridine (ethyleneimine), also known as polyethyleneimine, with a molecular weight of approximately 1500. It is used in cosmetics and industrial applications as a film-former and fixative.

Also known as Aziridine, homopolymer
INCI name PEI-1500
CAS number 9002-98-6
CosIng ID 36437
Last reviewed 9 July 2026

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

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