15% Vitamin C + E + Ferulic Our more advanced Vitamin C ritual for customers ready to take brightening and antioxidant care a step further. Illuminate Serum combines 15% Vitamin C with Vitamin E + Ferulic Acid for antioxidant support while helping brighten dull-looking skin and improve the appearance of uneven tone. Hyaluronic acid, panthenol and glycerin add lightweight hydration for a smoother, refreshed finish. Apply a few drops to clean skin before moisturizer. When used during the day, follow with sunscreen. Best for: Dullness • Uneven-looking tone • Advanced antioxidant care • Radiance