ACETYL D-GLUTAMYL D-LEUCYL D-CYSTEINE is graded A (Safe) by Expert·ING, based on COSING regulatory data.

ACETYL D-GLUTAMYL D-LEUCYL D-CYSTEINE

Safety grade: A

This is a lab-created compound made from amino acids, the building blocks your body naturally uses for skin and hair. In cosmetics, it's used to help improve skin texture and support the skin's natural protective barrier, working alongside other moisturizing ingredients.

Graded using: COSING.

Last verified: June 9, 2026