DECAPEPTIDE-59 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

DECAPEPTIDE-59

Safety grade: A

This lab-created protein fragment works to support your skin's natural moisture barrier and help maintain firmness. It's designed to penetrate the skin and encourage collagen production, potentially reducing the appearance of fine lines and wrinkles over time with consistent use.

Graded using: COSING.

Last verified: June 9, 2026