NAD+ may be the most discussed molecule on the wellness internet — credited, depending on the account you follow, with reversing aging, curing hangovers, rebooting brains, and extending life. When something is praised that loudly, a physician-led practice has two jobs: explain what’s actually known, and be honest about the gap between the biology and the promises. This is that explainer — the same one we give across the desk, with the enthusiasm and the caveats in the same paragraph where they belong.
What NAD+ actually is
NAD+ — nicotinamide adenine dinucleotide — is a coenzyme found in every cell you have, and it is genuinely fundamental. It has two jobs that matter for how you feel and how you age. First, energy: NAD+ is the shuttle that moves electrons through the process that turns your food into usable cellular fuel. No NAD+, no energy production — it is that central. Second, repair and regulation: a family of enzymes that maintain DNA, manage inflammation, and respond to cellular stress all consume NAD+ to do their work. It is, in a real sense, both the fuel line and part of the maintenance crew.
Two facts elevate it from biochemistry trivia to longevity conversation. NAD+ levels decline substantially with age — by some estimates falling to half or less of youthful levels by middle age. And that decline overlaps suspiciously with the cellular hallmarks of aging: less efficient energy production, slower repair, more inflammation. The hypothesis practically writes itself: if falling NAD+ contributes to aging, does restoring it help?
What the science actually shows
Here is the honest state of play. In laboratory and animal research, the case is genuinely impressive — restoring NAD+ in aged animals improves markers of metabolism, mitochondrial function, and cellular repair across many studies. In humans, the evidence is younger. Studies confirm that supplementation and infusion can raise NAD+ levels in the body, and early human trials of NAD+ precursors show encouraging signals on some metabolic and inflammatory markers. What does not yet exist is the large, long-term human trial proving that topping up NAD+ makes healthy adults live longer, think measurably sharper, or age visibly slower. Researchers are working on exactly those questions right now — which is the most accurate summary available: real biology, promising early data, verdict still out.
So why offer it at all? Because “the verdict is out on long-term aging outcomes” is not the same as “it does nothing.” The near-term experience patients describe — feeling clearer, steadier, and more even in the days after an infusion — is consistent enough that we hear it unprompted, week after week. That report is real and worth taking seriously; it is also subjective, and we tell you so. If a clinic promises you reversal of aging, they’ve left the evidence behind. If they tell you nothing is known, they’ve ignored a decade of legitimate research. The truth lives in the middle, and it’s a perfectly respectable place for an informed adult to make a decision.
Why the infusion experience matters more than people think
Here’s a practical detail that separates careful practices from careless ones: NAD+ must be infused slowly. Run too fast, it reliably causes flushing, warmth, nausea, and a distinctive pressure in the chest — the unpleasant stories you may have read are almost always rate stories. Run properly, the experience should be uneventful: at our practice the Longevity Infusion is a two-stage visit, a hydration base with vitamin C and B-complex first, then NAD+ on its own, titrated slowly over a session you should plan about 90 unhurried minutes for. Eat beforehand. Bring something to read. If you ever feel warm or odd mid-infusion, say so — slowing the drip resolves it, which is exactly why these belong in supervised medical settings rather than wherever is fastest.
The bottom line we’d give a friend
NAD+ is real, central biology — not a fad molecule invented by marketing. Its decline with age is documented, restoring it is plausible and actively studied, and the infusion experience, done properly, is safe and comfortable for appropriately screened adults. What it is not — yet, and maybe ever — is a proven anti-aging treatment, and it isn’t a substitute for the unglamorous fundamentals that demonstrably work: strength training, protein, sleep, and knowing your blood pressure. If you’re curious, come try it with accurate expectations; if you’d rather wait for larger trials, that is an entirely reasonable position, and we’ll say so to your face. Either way, you’ll have gotten the honest version — which is the only version we sell.
NAD+ therapy: quick answers
What does NAD+ do in the body? NAD+ (nicotinamide adenine dinucleotide) is a coenzyme in every cell. It shuttles energy out of the food you eat and fuels the enzymes that repair DNA and manage cellular stress. Levels decline substantially with age.
Does NAD+ IV therapy actually work? Honestly: the cellular biology is well established, and infusions do raise NAD+ levels, but large human trials proving long-term benefits in healthy adults are still underway. Many patients report feeling clearer and steadier in the days after an infusion; that experience is real but subjective, and no one should promise you it reverses aging.
How long does an NAD+ infusion take? Plan on roughly 90 minutes or more. NAD+ must run slowly to stay comfortable — clinics that push it fast are the reason people describe flushing and chest tightness.
What does an NAD+ infusion feel like? Run at the proper rate, it should feel uneventful — most people read or work. If the rate creeps too high you may feel warmth, flushing, or pressure in the chest; slowing the drip resolves it, which is why pacing and supervision matter.
Is NAD+ IV therapy safe? For appropriately screened adults under medical supervision, it is generally well tolerated, with rate-related flushing being the most common issue. Screening matters: conditions affected by IV fluids — such as heart or kidney disease — need review first, which is why a provider visit comes before any infusion.
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Curious, with accurate expectations? Explore the Wellness Collection — including the two-stage Longevity Infusion — with published pricing and a provider conversation before anything is infused. Explore the Wellness Collection Or call or text (210) 775-1785 · Universal City, TX