SR-POLYPEPTIDE-1 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

SR-POLYPEPTIDE-1

Safety grade: A

This plant-derived protein works to strengthen and protect your skin's outer layer, helping it retain moisture and maintain a smoother appearance. It's commonly used in serums and moisturizers to support skin firmness and resilience over time.

Graded using: COSING.

Last verified: June 9, 2026