Designed for all but the most sensitive skin types to help restore healthy looking skin, Serum 15 AOX+ neutralizes free radicals, defends against environmental damage, and helps prevent premature signs of aging. Now formulated with AOX+ advanced antioxidant technology, Serum 15 AOX+ is a lightweight, fast-absorbing serum combining ferulic acid with 15% pure vitamin C to enhance antioxidant performance.