Last updated October 7, 2026. Written and maintained by the Ultimate Male clinical team; regulatory lines are re-checked when the FDA acts.
What NAD+ is
Nicotinamide adenine dinucleotide, NAD+ for short, is a molecule found in every living cell. It shuttles electrons during the reactions that make ATP, the energy currency your muscles, brain and heart run on, and it is the fuel for sirtuins and PARP enzymes, two families of proteins that repair DNA and regulate how cells age. Your body makes NAD+ from vitamin B3 (niacin) and from tryptophan in food, but production slows with age while demand from inflammation and daily wear goes up. The result is a gradual deficit that researchers link to the fatigue, slower recovery and foggier thinking many men describe in their forties and fifties.
How NAD+ therapy works
Rather than relying on your body to build NAD+ from precursors, therapy delivers the finished molecule. Two routes are used at Ultimate Male:
- Subcutaneous injection: 50 to 100 mg in a small insulin-style syringe, usually two or three times a week. Men learn it in clinic and continue at home.
- IV infusion: 250 to 500 mg in saline, run slowly over two to four hours in our IV chairs. Higher dose, faster onset, but it has to be dripped slowly because fast NAD+ causes chest tightness and nausea.
- Oral precursors (NMN, nicotinamide riboside) are the over-the-counter alternative. They raise NAD+ in blood tests but the increase is smaller and less predictable than injection, which is why men who already tried a supplement often move to the injectable.
What the research shows
Honest summary: the cell biology is well established, the human trials are small. Animal studies show restored NAD+ improves mitochondrial function, muscle endurance and markers of aging. In people, trials of NAD+ precursors have confirmed that blood NAD+ can be raised safely and have reported modest improvements in muscle insulin sensitivity, blood pressure and fatigue scores in older adults. Trials of IV NAD+ itself are fewer, mostly in addiction recovery and chronic fatigue, and they are short. So we present NAD+ as a well-tolerated therapy with a strong mechanism and growing but still early evidence, not as a proven anti-aging drug.
How we use NAD+ at Ultimate Male
NAD+ is one of the few peptides that can be tried without a long work-up, but we still start with the free call and a basic panel, because low energy has other common causes (low testosterone, thyroid, iron, sleep apnea) that NAD+ will not fix.
- First session in clinic, so we can watch how you tolerate it and set the dose
- Most men settle on twice-weekly home injections, or an IV every two to four weeks with the option to add vitamin C, glutathione or B-complex
- Energy and focus changes are usually reported within the first two to three weeks; we check in at week six
- Can be combined with TRT, sermorelin or a weight-loss plan; it does not interact with them
Where the FDA stands on NAD+
NAD+ is not an FDA-approved medication. It is supplied by licensed 503A compounding pharmacies as an injectable and an IV additive, and it has been in use that way for years. In 2026 the FDA has been working through which compounded substances stay available; as of October 7, 2026, NAD+ remains available to pharmacies and we will update this page if that changes. The oral precursors NMN and NR are regulated as supplements and are a separate question.
Side effects and who should skip it
NAD+ is one of the gentler items on the menu. Injection-site redness is the most common complaint. During an IV, running the drip too fast causes flushing, nausea, chest pressure and cramping, which disappear when the rate is slowed; that is why our infusions are never rushed. Men with a history of heart rhythm problems, severe kidney disease or active cancer should discuss it with the provider first, and we do not run NAD+ IVs on the same day as a heavy training session.
What men use NAD+ therapy for
Is NAD+ therapy for me?
It may be a good fit if any of these sound like you. Labs and a consultation decide.
- Men in their forties and up whose energy fades by mid-afternoon despite decent sleep
- Men who have tried NMN or NR capsules and want a more reliable version
- Men on TRT whose labs are in range but who still feel mentally slower than they used to
- Men recovering from burnout, jet lag or a long illness who want a reset
- Men who want an IV option they can book around a work schedule
Who should not use it
- Unexplained fatigue that has not been worked up yet: labs first, because low T, thyroid and anemia are more common causes
- Active cancer under treatment, unless your oncologist agrees
- A history of serious heart rhythm disorders without clearance
- Anyone expecting NAD+ to replace sleep, training or a treated hormone deficiency
How it starts
A free ten-minute phone call, then labs and a one-on-one consultation with a provider in San Gabriel or Downey. NAD+ therapy is recommended only if your results and goals point to it.
