OLIGOPEPTIDE-128 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

OLIGOPEPTIDE-128

Safety grade: A

This peptide is a chain of amino acids designed to help strengthen and firm skin by supporting its natural structure. It works to improve skin elasticity and reduce the appearance of fine lines, making it a popular choice in anti-aging skincare products.

Graded using: COSING.

Last verified: June 9, 2026