OLIGOPEPTIDE-261 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

OLIGOPEPTIDE-261

Safety grade: A

This is a lab-made protein fragment designed to support your skin's natural structure and firmness. It works by signaling skin cells to maintain elasticity and smoothness, making it a common choice in anti-aging and firming creams and serums.

Graded using: COSING.

Last verified: June 9, 2026