NAD+ injections are everywhere right now and most of what people are saying about them is wrong

Quick reality check on this one because the hype is getting out of hand.

NAD+ is a coenzyme your cells use for basically every energy-producing reaction. Levels drop with age, that part is real. The leap people are making is “inject NAD+, reverse aging.” That leap is not in the data.

What the actual research shows is that oral NAD+ precursors like NR and NMN raise blood NAD+ levels reliably. Whether that translates to clinical benefit in humans is still murky. The big longevity claims you see on Instagram come from mouse studies and a handful of small human trials with soft endpoints.

Injectable NAD+ is a different conversation. The pharmacokinetics are weird, the infusions are notoriously uncomfortable (people describe a chest pressure feeling that’s not subtle), and the dose-response for any specific outcome basically doesn’t exist in the literature. Clinics charging $500 a pop for IV NAD+ are selling you something the evidence doesn’t support at that price.

If you want to play with NAD+ biology, oral NR or NMN has better data and costs a fraction. Subcutaneous NAD+ at modest doses has anecdotal support for energy and recovery but I’d treat anyone making aging-reversal claims with serious skepticism.

The molecule is interesting. The marketing has gotten ahead of the science by about a decade.