OLIGOPEPTIDE-255 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

OLIGOPEPTIDE-255

Safety grade: A

A protein-derived ingredient made from amino acid chains that help support skin's natural structure and elasticity. It works to condition and smooth the skin's surface, making it a common addition to anti-aging and moisturizing formulas designed to improve overall skin texture and appearance.

Graded using: COSING.

Last verified: June 9, 2026