DIMER TRIPEPTIDE-43 is graded A (Safe) by Expert·ING, based on COSING regulatory data.

DIMER TRIPEPTIDE-43

Safety grade: A

This is a small protein fragment made up of three amino acids linked together in a specific pattern. It's a lab-created ingredient designed to interact with skin cells.

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

Graded using: COSING.

Last verified: May 26, 2026