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

SH-POLYPEPTIDE-13

Safety grade: A

This is a protein-like molecule made up of amino acids (the building blocks of proteins) that is designed to protect and strengthen the skin. It works by forming a protective layer on the skin's surface.

This ingredient protects the skin by creating a barrier that shields it from environmental stressors and helps maintain the skin's natural moisture and resilience.

Graded using: COSING.

Last verified: May 26, 2026