The increase in ROS or RNS levels involves a concomitant increase of proinflammatory cytokines and the activation of NF-, which in turn activates the hepatic stellate cells, the subsequent fibrosis, and damage to the DNA [12,64], with a failure in the synthesis of exogenous antioxidants [12]
In your skin, NAD helps repair cell damage, produce new healthy cells, support collagen production, strengthen the skin barrier, and fight environmental stressors (like UV and pollution)
[12] Ferreira GC, McKenna MC
Reactive oxygen species (ROS) and other free radicals can damage cellular components, including lipids, protein and DNA