SH-POLYPEPTIDE-31 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

SH-POLYPEPTIDE-31

Safety grade: A

This is a short chain of amino acids (the building blocks of proteins) that is designed to improve skin texture and moisture. It works by helping your skin retain water and maintain a smooth, healthy appearance.

This ingredient conditions and hydrates the skin by forming a protective layer that locks in moisture and helps improve skin softness and elasticity.

Graded using: COSING.

Last verified: May 26, 2026