SR-PECTOBACTERIUM POLYPEPTIDE-1 ARGINYL SR-SPIDER OLIGOPEPTIDE-1 DIPEPTIDE-19 HEXAPEPTIDE-40 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

SR-PECTOBACTERIUM POLYPEPTIDE-1 ARGINYL SR-SPIDER OLIGOPEPTIDE-1 DIPEPTIDE-19 HEXAPEPTIDE-40

Safety grade: A

This ingredient is a blend of peptides—tiny protein fragments—designed to support skin firmness and elasticity. Derived from natural sources including spider silk proteins, it works by helping strengthen the skin's structural support. It's commonly used in anti-aging and firming skincare products.

Graded using: COSING.

Last verified: June 9, 2026