CheckVegan

Is PEG vegan?

PEG

Vegan Vegan
Vegetarian Vegetarian

Polyethylene glycol (PEG) is a polymer of ethylene oxide used widely in cosmetics as a humectant, solvent, and emulsifier. While typically produced synthetically from petrochemical sources, it can also be derived from plant or animal feedstocks.

Also known as Macrogol, PEG polymer, POE, Polyethylene glycol, Polyoxyethylene
E number E1521
INS number 1521
Last reviewed 16 April 2026

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

Classifications are made to the best of our knowledge based on available scientific and regulatory sources. We cannot guarantee the accuracy of every entry, errors in the sources we draw from can always occur. This tool also cannot account for cross-contamination, which depends entirely on individual suppliers and producers. If you believe a classification is incorrect, you can report an issue.

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