HISTIDYL D-TRYPTOPHANYL DIPEPTIDE-29 D-PHENYLALANYL LYSINAMIDE is graded A (Safe) by Expert·ING, based on COSING regulatory data.

HISTIDYL D-TRYPTOPHANYL DIPEPTIDE-29 D-PHENYLALANYL LYSINAMIDE

Safety grade: A

This ingredient is a lab-created peptide—a small chain of amino acids—designed to help skin look firmer and more youthful. It works by supporting skin's natural structure and may help reduce the appearance of fine lines. It's typically found in anti-aging serums and creams.

Graded using: COSING.

Last verified: June 9, 2026