RH-POLYPEPTIDE-27 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

RH-POLYPEPTIDE-27

Safety grade: A

This is a lab-created protein-like ingredient that helps strengthen and support your skin's structure. It works to improve skin firmness and elasticity, making your complexion look smoother and more resilient over time.

Graded using: COSING.

Last verified: June 9, 2026