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Is Methoxy PEG-450 Maleimide vegan?

Methoxy PEG-450 Maleimide

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A synthetic polyethylene glycol derivative with an average of 450 moles of ethylene oxide, terminated with a methoxy group and functionalized with a maleimide group. It is used in cosmetic and pharmaceutical formulations, often as a PEGylation reagent.

Also known as N-(2-(Methylpoly(oxyethylene)oxy)ethyl)-1H-pyrrole-2,5-dione
INCI name Methoxy PEG-450 Maleimide
CosIng ID 82215
Last reviewed 4 July 2026

An ingredient is considered vegan if it contains no animal-derived components at any point in its production.

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