R-(OLIGOPEPTIDE-133 SH-POLYPEPTIDE-11) is graded A (Safe) by Expert·ING, based on COSING regulatory data.

R-(OLIGOPEPTIDE-133 SH-POLYPEPTIDE-11)

Safety grade: A

This ingredient is a blend of two types of short protein chains designed to work together in skincare products. It's created through laboratory processes and helps improve skin texture and firmness by supporting the skin's natural structure, making it a common choice in anti-aging formulas.

Graded using: COSING.

Last verified: June 9, 2026