Designed for everyday use the Olay Regenerist Serum boasts a unique & effective formula which works to replenish & rejuvenate the skin for a crystal clear younger looking compelxion. Containing anti-oxidant ingredients Carnosine & KTTKS this serum fights against the signs of ageing whilst giving your skin a naturally radiant glow. K.D. Directions for use: To begin using twist the pump nozzle anti-clockwise. Using fingertips smooth evenly onto clean skin over face & neck. This product can be used alone or before applying moisturiser or foundation make-up. Use Olay Regenerist Regenerating Serum day or night.