The mechanism of action of NMN in youth NMN cell activation technology NMN –> Convert to NAD+  –>Start Sirtuins1~7 longevity genes + activate mitochondria + repair cell DNA + stem cell activation + telomere length maintenance + autophagy increase + immune regulation increase + infertility reduction + prevention of chronic diseases–> Health and longevity + become younger + reduce the speed of aging + restore youth