KSurgery Mature Skin Dionis RcO Invigorating Face Serum 30mlSerum. Mature skin types. Not to be used if you are pregnant or breast feeding or planning on falling pregnant! The first line to combine the regenerating and antioxidant power of oak meristem stem cells with four different molecular forms of hyaluronic acid for a perfect hydration and a fantastic lifting effect. High quality and excellent dermo cosmetic performance for visible results from the very first applications. Rich in ingredients with