NAD+ Injectable
Nicotinamide Adenine Dinucleotide — IV / SubQ Injectable
What is NAD+ Injectable?
NAD+ (Nicotinamide Adenine Dinucleotide) injectable provides direct intravenous or subcutaneous NAD+ repletion, bypassing the oral conversion pathway from NAD+ precursors (NMN, NR). NAD+ is essential for mitochondrial function, DNA repair (via PARP enzymes), sirtuin activation, and hundreds of cellular redox reactions. NAD+ levels decline approximately 50% between age 20 and 60.
Injectable NAD+ provides immediate cellular NAD+ repletion, activating sirtuins (SIRT1-7), PARPs (DNA repair enzymes), and CD38 (immune signaling). IV administration produces much higher peak NAD+ levels than oral precursors can achieve through biosynthesis. This rapid repletion is believed to produce more robust sirtuin activation and cellular repair than the gradual NAD+ elevation from oral NMN or NR.
Research Evidence
IV NAD+ produces rapid, large increases in cellular NAD+ levels confirmed by blood testing. More effective at raising NAD+ than oral precursors in the short term.
NAD+ IV infusion has been used in addiction medicine clinics for decades for opioid, alcohol, and stimulant withdrawal. Clinical reports suggest reduced cravings and withdrawal symptoms.
Community use for energy, cognitive clarity, and longevity is widespread. Mechanistically plausible via sirtuin activation. Controlled longevity trial data is limited.
Evidence grades: Gold = RCT human data · Silver = consistent animal/human data · Bronze = limited or preliminary
Dosing Protocols
Reconstitution / Preparation
| Vial/Pack | Diluent | Concentration | Typical draw |
|---|---|---|---|
| 500 mg | 5 ml sterile water | 100 mg/ml | 25mg SubQ = 25 units of 1mg/ml |
| 250 mg | 5 ml sterile water | 50 mg/ml | 50mg = 100 units |
Frequently Asked Questions
Is injectable NAD+ better than NMN or NR supplements?
For immediate NAD+ elevation, yes — IV NAD+ produces much higher peak blood NAD+ than oral precursors can achieve through biosynthesis. However, oral NMN and NR maintain chronically elevated NAD+ throughout the day with daily use. Most protocols combine both: daily oral NMN/NR for sustained elevation plus periodic IV NAD+ for larger acute repletion.
What causes the flushing during NAD+ IV?
The flushing, chest tightness, and nausea during NAD+ IV are due to the infusion rate exceeding the body's capacity to utilize NAD+ — it accumulates in circulation and activates niacin receptors. Slowing the infusion rate to 2-4 hours eliminates most discomfort. Pre-medication with aspirin or diphenhydramine is used in some clinics.
References
- [1]Yoshino J, Baur JA, Imai SI. NAD+ intermediates: the biology and therapeutic potential of NMN and NR. Cell Metab. 2018;27(3):513-528.
- [2]Braidy N, Guillemin GJ, Mansour H, et al. Age related changes in NAD+ metabolism oxidative stress and Sirt1 activity in wistar rats. PLoS One. 2011;6(4):e19194.
This profile was prepared using AI-assisted research synthesis. Citations are provided where applicable — verify with primary sources before clinical application.
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