SH-POLYPEPTIDE-111 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

SH-POLYPEPTIDE-111

Safety grade: A

This plant-derived protein works to strengthen and condition your hair and skin by forming a protective layer on the surface. It helps lock in moisture and improve texture, making hair smoother and skin softer. It's commonly found in shampoos, conditioners, and skincare products.

Graded using: COSING.

Last verified: June 9, 2026