SH-POLYPEPTIDE-138 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

SH-POLYPEPTIDE-138

Safety grade: A

This peptide is a chain of amino acids designed to help strengthen and firm skin. It works by supporting your skin's natural structure, potentially improving elasticity and reducing the appearance of fine lines. It's commonly used in anti-aging creams and serums to help skin look more lifted and youthful.

Graded using: COSING.

Last verified: June 9, 2026