NMN POWDER 60GNMN (B Nicotinamide Mononucleotide) is a precursor to NAD+. While NAD+ exists naturally in the brain, it declines with age. NAD+ can decrease neurotoxicity and ROS (Reactive Oxygen Species) in the brain. Which can damage brain tissue , decrease neurotransmitters and deplete glutathione which the brain needs to drive the mitochondria. NAD+ can also decrease oxidative stress in the brain, which can lead to cell death. It is a effective neuroprotective