SH-POLYPEPTIDE-89 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

SH-POLYPEPTIDE-89

Safety grade: A

This is a lab-created protein that works to strengthen and support your skin's structure. It helps improve skin firmness and elasticity by boosting the skin's natural protein network. You'll often find it in anti-aging and firming skincare products.

Graded using: COSING.

Last verified: June 9, 2026