KDI Skincare | Retinol RefinerAdvanced formula containing Retinol, Vitamin C and Coenzyme Q10 works to visibly reduce fine lines and wrinkles through increased cellular turnover, while enhanced collagen synthesis promotes healthy, more youthful looking skin. The Retinol dosage delivered in this formula increases firmness, and diminishes the look of fine lines and wrinkles significantly improving skin tone and refining the skin's surface. Vitamin C provides potent antioxidant