Want brighter, tighter, and overall better-looking skin? There’s an ingredient for that: Vitamin C. This powerhouse ingredient is a potent antioxidant that helps reduce inflammation, evens out irregular pigmentation, and promotes healthy collagen production. Vitamin C is a key component to many skin-brightening regimens. Studies show that Vitamin C’s effects are more potent when combined with ferulic acid. Ferulic acid is a powerful antioxidant naturally found in fruit seeds like oranges and apples, and in vegetables and nuts. Like other antioxidants, ferulic acid fights back against (and can reverse) free radical damage in your skin.This paraben-free, fragrance-free, clean, clinical serum is formulated with 15% L-Ascorbic Acid, Ferulic Acid and Zinc Sulfate – the ultimate skin-brightening cocktail! Apply after cleansing, gently pat a few drops into the skin before moisturizing. Brighten C is best used in your morning routine.