PENTAPEPTIDE-66 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

PENTAPEPTIDE-66

Safety grade: A

This lab-created protein fragment works to help reduce the appearance of fine lines and wrinkles by supporting your skin's natural firmness and elasticity. It's designed to work gently on the skin's surface to promote a smoother, more youthful-looking complexion over time.

Graded using: COSING.

Last verified: June 9, 2026