RH-POLYPEPTIDE-147 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

RH-POLYPEPTIDE-147

Safety grade: A

This ingredient is a chain of amino acids (the building blocks of proteins) designed to help skin look smoother and more hydrated. It works by supporting your skin's natural moisture barrier and may help reduce the appearance of fine lines. It's commonly used in serums and moisturizers.

Graded using: COSING.

Last verified: June 9, 2026