Can NMN Impact Aging?

There's oral forms of nad. I've tried various ones, but the one that has the most promise right now is called nmn. I'm going to use the letters versus the terms because it's confusing, but NMN is a precursor to nad, and it is likely the most favorable precursor to NAD and the most bioavailable. You can take it as a powder, into a drink or as a tablet. It is considered a vitamin historically, but recently the FDA has reclassified it as an investigational new drug, which has led to some companies like Amazon, not carrying NMN anymore. But you can still buy it through various manufacturers. There's a company that is led by David Sinclair, he's kind of a famous Harvard scientist that want to turn this into a drug that they can sell to people if they can prove that it does, in fact, have some impacts on some component of aging, because aging is not clearly defined by the FDA.