CheckVegan

Is rh-Polypeptide-12 vegetarian?

rh-Polypeptide-12

rh-Polypeptide-12 is a single-chain recombinant human peptide produced by fermentation in E. coli, based on a gene coding for interleukin-4 originally isolated from a human cell. It is used in cosmetics for its purported skin-conditioning properties.

INCI name rh-Polypeptide-12
CAS number 453656-85-4
CosIng ID 85184
Last reviewed 4 July 2026

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

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.

Report an issue