OLIGOPEPTIDE-140 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

OLIGOPEPTIDE-140

Safety grade: A

A protein-derived ingredient made from broken-down amino acids, oligopeptide-140 is designed to help improve skin firmness and elasticity. It works by supporting the skin's natural structure, making it a common addition to anti-aging and firming creams and serums.

Graded using: COSING.

Last verified: June 9, 2026