Visibly rewind your skin’s age by up to 6 years(1) with Obagi NU-GEN™ Cellular Renewal Serum, an advanced anti-aging and firming serum. Clinically proven to target a leading cause of skin aging by helping replenish diminished NAD+ within the skin cells– to restore skin health, visibly renew, improve skin texture, and contribute to younger, healthier-looking skin.