PENTAPEPTIDE-45 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

PENTAPEPTIDE-45

Safety grade: A

This is a small chain of amino acids (the building blocks of proteins) created in a laboratory. It works to help protect skin from environmental stressors and damage.

This ingredient helps shield and defend the skin against environmental damage while supporting the skin's natural protective barrier function.

Graded using: COSING.

Last verified: May 26, 2026