METHIONYL RH-POLYPEPTIDE-83 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

METHIONYL RH-POLYPEPTIDE-83

Safety grade: A

This is a lab-created protein complex designed to help strengthen and firm skin. It works by supporting the skin's natural structural proteins, potentially reducing the appearance of fine lines and improving skin elasticity. It's typically found in anti-aging serums and creams.

Graded using: COSING.

Last verified: June 9, 2026