RH-POLYPEPTIDE-13 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

RH-POLYPEPTIDE-13

Safety grade: A

A protein-based ingredient derived from plant sources that helps strengthen and protect your skin's outer layer. It works to improve skin texture and can enhance the effectiveness of other skincare ingredients, making your complexion look smoother and more resilient over time.

Graded using: COSING.

Last verified: June 9, 2026