OLIGOPEPTIDE-134 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

OLIGOPEPTIDE-134

Safety grade: A

This is a small chain of amino acids (the building blocks of proteins) designed to help firm and smooth skin texture. It works by supporting the skin's natural structure, potentially reducing the appearance of fine lines and promoting a more youthful complexion. It's commonly found in anti-aging serums and moisturizers.

Graded using: COSING.

Last verified: June 9, 2026