1. Synext’s NAD+ precursor is a pure natural substance and has been safely taken by humans for more than 70 years. NMN, which is popular in the United States, has not passed human safety clinical trials globally, so it has not passed the world’s standards. The most stringent review and approval by the Australian Food and Drug Administration (TGA) (American health products do not require FDA review and approval before they can be marketed), is not allowed to be sold in Australia, and is an export-only ingredient in Australia. Related products cannot be sold in Australia. Listed. 2. Synext is a patented compound formula. Not only does each capsule contain 140mg of NAD+ precursor, but on this basis, the receptor positioning and preparation technology developed based on the experimental results of molecular biology allows the NAD+ precursor in each capsule of Synext to pass Supplementing NAD+ and internal circulation conversion in the body can achieve a compound cumulative NAD+ conversion rate of more than 500%, which is not possible with any single-component NAD+ precursor such as NMN (conversion rate 70%) or NR (conversion rate 80%). Comparable conversion effects. 3. The Senolytic ingredient in the formula, combined with the function of NAD+, will remove overgrown zombie cells in the body. Synext is currently the only health product in the world that can combine the efficient conversion of NAD+ precursors with the function of eliminating zombie cells. I hope my answer can solve your problem