A 5% concentration of stabilized l-ascorbic acid (vitamin-c) helps to diminish the appearance of fine lines and wrinkles by fighting oxy radicals and stimulating collagen production. helps skin look and feel like younger skin. even age and sun spots seem less obvious. for all skin types. provides antioxidant protection prevent photo-aging stimulate collagen production prevents future signs of aging progressively refines skin texture and tone light formula provides the ideal under make-up basemethod of useapply to cleansed face and neck. use am and pm.