What kind of substance is Wright Wei Jian WLNAD?

Wright Wei Jian WLNAD is an anti-aging product launched by Wright Wei Jian, a well-known natural health brand in Xianggang. Its core component, NMN, is an inherent substance in human body, a precursor of NAD+ and an important intermediate product of human metabolism. NAD+ synthesized and transformed by NMN can provide energy for cells and activate SIRTUINS protein family.