RH-POLYPEPTIDE-33 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

RH-POLYPEPTIDE-33

Safety grade: A

This is a chain of amino acids (the building blocks of proteins) that is designed to work with your skin's natural processes. It helps support and protect the skin's structure and appearance.

This ingredient conditions and protects the skin by helping to maintain its natural barrier and supporting overall skin health and resilience.

Graded using: COSING.

Last verified: May 26, 2026

Other Skin Conditioning ingredients