NAD+ has gone from a biochemistry textbook term to something people ask about by name. Most of the attention went to IV drips first: an hour or more in a chair while the infusion runs. NAD+ injections take a couple of minutes, can be done at home, and are often the more practical option for people who want ongoing support rather than an occasional session.
Here is what NAD+ does, what injections can reasonably offer, and how they fit into our peptide therapy and longevity medicine work.
What is NAD+?
NAD+ (nicotinamide adenine dinucleotide) is a coenzyme found in every cell in your body. It does two big jobs.
First, it is part of how your mitochondria turn food into usable energy. Without enough NAD+, that process slows down.
Second, it fuels enzymes involved in repairing DNA and regulating how cells age, including a family of proteins called sirtuins that get a lot of attention in longevity research.
Why do NAD+ levels drop?
Studies in both animals and people show NAD+ levels decline with age. Chronic inflammation, heavy alcohol use, poor sleep, and metabolic problems like insulin resistance appear to drain it faster, because the repair processes that consume NAD+ are working overtime.
That decline is one of the reasons NAD+ became a longevity topic. The question is whether putting more of it back changes how you feel or how you age. The short answer: the biology is strong, and the human outcome data is still early.
What can NAD+ injections help with?
People usually come to NAD+ for one of these:
Low energy that has not improved with sleep, diet, or exercise
Brain fog and poor focus
Slower recovery from training or illness
A longevity plan they want to build around measurable markers
Research on NAD+ precursors taken by mouth (like NR and NMN) shows they reliably raise NAD+ levels in the blood. Small studies suggest possible benefits for muscle function, blood pressure, and inflammation markers, though results are mixed and effects are modest. Direct NAD+ injections have less published research behind them than the oral precursors. Some people describe clearer thinking and steadier energy, which is worth taking seriously, but it is not the same as proof.
NAD+ injections vs. IV therapy
Both get NAD+ past the digestive system. The difference is mostly practical.
Time: NAD+ injection, a few minutes. NAD+ IV infusion, often 1 to 4 hours.
Where: NAD+ injection, at home, after training. NAD+ IV infusion, in a clinic.
Typical rhythm: NAD+ injection, small doses, several times a week. NAD+ IV infusion, larger doses, less often.
Common complaints: NAD+ injection, brief sting at the site. NAD+ IV infusion, chest tightness, nausea, or cramping if the drip runs fast.
IV therapy delivers a larger amount in one sitting. Injections are lower dose and steadier, which suits people who want ongoing support. If you are weighing the two, our earlier article on NAD+ IV therapy covers the infusion side.
What are the side effects?
Most are mild and short-lived. Expect some stinging or redness at the injection site. Some people feel flushed, a little nauseated, or crampy for a few minutes after a dose, which usually eases as the dose is adjusted.
NAD+ is not FDA approved for energy or anti-aging. It is prepared by licensed compounding pharmacies and prescribed by a provider. It is not used in pregnancy, and anyone with a cancer history should talk it through carefully, since NAD+ also fuels fast-dividing cells.
Who is a good candidate?
NAD+ makes the most sense as one layer in a plan, not the whole plan. If your fatigue comes from low ferritin, a sluggish thyroid, poor sleep, or a cortisol pattern that has been flattened by years of stress, NAD+ will not override any of that. We check those first.
The patients it fits best tend to have their foundations reasonably in place and want to support energy, recovery, and healthy aging on top of them. Some pair it with growth hormone support, which our article on growth hormone peptides explains. If you are already a patient, ask about NAD+ at your next follow-up. If you are new, our membership plans show what ongoing care includes, along with member discounts on medications and supplements.
Frequently asked questions
How often are NAD+ injections given?
It depends on the protocol. Many people use small subcutaneous doses a few times a week, and the schedule is adjusted based on how you respond.
Do NAD+ injections hurt?
The needle is small, similar to an insulin needle. Most people notice a brief sting that fades in a minute or two.
How fast do NAD+ injections work?
Some people notice a difference in energy or focus within a few weeks. Others notice little. That variability is why we track how you feel alongside your labs.
Are NAD+ injections better than NMN or NR supplements?
Injections bypass digestion, while oral precursors rely on your body to convert them. The oral forms have more published human research. Which one fits depends on your goals and budget.
Can I do NAD+ injections if I am on hormone therapy?
Usually, yes. NAD+ does not act on your hormone levels. We manage both in the same plan so nothing works against anything else.
See whether NAD+ belongs in your plan
NAD+ is a support tool, and it works best when the basics have been looked at first. Book a consultation and we will start with a full panel, then talk through where NAD+ fits. You can also compare our membership plans or call 918-842-7872.