PENTAPEPTIDE-58 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

PENTAPEPTIDE-58

Safety grade: A

This is a lab-made protein fragment designed to help improve skin's appearance by potentially reducing the look of fine lines and promoting a smoother texture. It works by interacting with your skin's natural processes to support firmness and elasticity, making it a common choice in anti-aging serums and creams.

Graded using: COSING.

Last verified: June 9, 2026