Express Vitamin C is a high potency antioxidant combination. Delivers advanced environmental protection against photo-aging by neutralizing free radicals that cause accelerated signs of aging. Tetrahexyldecyl ascorbate stimulates collagen production, increasing firmness and replenishes lipids to visibly reduce wrinkles. Ferulic Ester, a powerful plant-derived antioxidant works with Vitamin C and E to increase their potency. CE Ferulic Antioxidant Serum is formulated with ferulic acid, an organic compound. Widely used in Japanese culture, ferulic acid is derived from plants and works as a natural sunscreen. This special formula visibly reduces the appearance of wrinkles by increasing firmness and replenishing lipids.