Nicotinamide Riboside

Your skin cells are experiencing an energy crisis. Every day, the molecular fuel that powers cellular repair, DNA maintenance, and collagen production—nicotinamide adenine dinucleotide (NAD+)—declines further. By age 40, your NAD+ levels have dropped by approximately 40% compared to youth. By age 60, that decline reaches 60-80%. This NAD+ depletion directly accelerates visible skin aging, manifesting as deepening wrinkles, loss of elasticity, thinning dermis, impaired wound healing, and vulnerability to UV damage.

A detailed, research-backed comparison of NMN and NR as NAD+ precursors for anti-aging, covering the clinical evidence, biochemistry, bioavailability differences, FDA controversy, and practical recommendations for supplementation.