This nighttime complement to La Prairie's Anti–Ageing Day Cream SPF 30 represents state–of–the–art age–intervention technology that helps prevent and reduce skin damage at the cellular level. It retards protein damage in the dermal matrix, a major cause of skin aging; rejuvenates the appearance of the skin by increasing smoothness and reducing wrinkles; and provides powerful anti–oxidant benefits. It also activates the skin's purification system, helps extend the life of young, vital cells and significantly increases hydration.