Product name: Carnosic acid INCI Name: CARNOSIC ACID Molecular Formula: C20H28O4 Molecular Weight: 332.43 Appearance: yellow fine powder Purity: 6%-80% CAS NO.: 3650-09-7 EINECS No.: 609-253-7 Supplier: ZHENYIBIO Carnosic acid is a diterpene compound found in the dried leaves of oregano, rosemary and common sage.It is in the form of a yellow powder and is an effective antioxidant that protects the skin from environmental pollutants which causes oxidative stress and provides protection against UV-A radiation. Also carnosic acid has antibacterial properties, especially suitable for cracked,inflamed or acne-prone skin.