The Obagi NU-GEN NAD+ Cellular Renewal Face Serum is a clinically tested anti-aging formula that combines niacinamide and NMN (nicotinamide mononucleotide) to target visible signs of aging. This serum is formulated to support the skin’s natural renewal processes by boosting cellular levels of NAD+, a coenzyme essential for energy metabolism and repair. Niacinamide helps improve skin tone, reduce the appearance of dark spots, and strengthen the barrier, while NMN works to sustain collagen production and maintain skin firmness. Regular use may diminish the look of fine lines and wrinkles, while also providing hydration and aiding in overall skin repair. The lightweight, non-greasy texture absorbs quickly and is well-suited for daily application on normal, dry, combination, or sensitive skin types when patch-tested. This 1-ounce serum is part of a comprehensive regimen designed for those seeking a science-driven approach to mature or aging skin. It contains no added fragrances or parabens, and its formula relies on clinically validated ingredients rather than harsh exfoliants. For best results, it is recommended to apply the serum after cleansing and before moisturizer, both morning and night. The product is suitable for individuals who want to address uneven texture, loss of elasticity, and dullness without relying on invasive procedures. By supporting the skin’s intrinsic repair mechanisms, this serum offers a gradual improvement in smoothness, brightness, and resilience.