NR / NAD+ Precursor / Tru Niagen
A form of Vitamin B3 that serves as a highly bioavailable NAD+ precursor. NAD+ levels decline ~50% between ages 40–60, with this decline implicated in hallmarks of cellular aging. NR supplementation reliably increases blood NAD+ by 40–90% in human trials. Skin implications include improved DNA repair capacity, reduced UV-induced immunosuppression, and mitochondrial rejuvenation.
Oral 250–500mg NR/day. Morning or midday timing preferred.
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