DIPEPTIDE-14 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

DIPEPTIDE-14

Safety grade: A

Dipeptide-14 is a small protein fragment made up of two amino acids linked together. It's a man-made ingredient designed to work with your skin at a molecular level.

This ingredient is used in cosmetics to help improve skin firmness, elasticity, and overall appearance by supporting the skin's structural proteins.

Graded using: COSING.

Last verified: May 26, 2026