NAD+ is everywhere in wellness marketing right now, usually promoted through IV 'drips' and supplements that promise more energy and slower ageing. Before anything else, one honest correction: NAD+ is not a peptide at all. It's included here because so many people search for it alongside peptides — and because the marketing runs way ahead of the human proof.

What NAD+ actually is

NAD+ stands for nicotinamide adenine dinucleotide. It is a coenzyme — a small helper molecule that your cells need to do their jobs. It is not a peptide (a chain of amino acids); it's a different kind of molecule entirely. NAD+ sits at the heart of two big jobs in the body: helping turn food into energy, and helping repair DNA (the instruction code inside your cells). You already make it naturally, and levels tend to fall as you get older.

What it's studied and used for

NAD+ (and its 'precursors' — building-block molecules like NMN and NR that the body converts into NAD+) are marketed and studied for:

  • Cellular energy and feeling less tired
  • Ageing and general 'longevity'
  • DNA repair and cell health

The basic biology is real and well understood. The leap that isn't proven is whether taking extra NAD+ actually slows ageing or boosts energy in healthy people.

What the evidence really shows

Here's the honest split. That NAD+ matters inside cells is solid, textbook biology. Whether topping it up — by IV or supplement — gives real anti-ageing or energy benefits in humans is early and mixed. Some small human studies show that supplements can raise NAD+ levels in the blood, but that's not the same as proving you'll live longer, feel more energetic, or age more slowly. Many of the boldest claims still rest on animal and lab work.

What the research points to

  • NAD+ is genuinely central to energy and DNA repair inside cells
  • Supplements can raise NAD+ levels in the blood in some studies
  • A real biological reason scientists are studying it for ageing

What it does NOT prove

  • That taking NAD+ or its precursors slows ageing in humans
  • That IV drips 'boost energy' better than a healthy lifestyle
  • That it's an approved treatment for any disease or for ageing

Who talks about it — and why to be careful

NAD+ is popular in longevity, biohacking, and 'IV wellness' clinics, where drips can be expensive and claims can be big. Remember that a supplement raising a lab number is not the same as a proven health benefit you'll feel. If you're tired all the time or worried about ageing, a doctor can check for real, treatable causes first.

What this does not mean

  • This does not mean NAD+ is a peptide — it's a coenzyme, a different kind of molecule.
  • This does not mean NAD+ drips or supplements are proven to slow ageing or boost energy in humans — that evidence is early and mixed.
  • This is general education, not medical advice or a recommendation to use NAD+.