NAD+
POWER YOUR
CELLS FROM WITHIN
NAD+ (Nicotinamide Adenine Dinucleotide) is the master coenzyme of cellular energy production. Every cell in your body depends on it to generate ATP, repair DNA, regulate inflammation, and maintain the biological machinery that keeps you young, sharp, and resilient. By your 40s, NAD+ levels have dropped by nearly half — and that decline is directly linked to fatigue, cognitive fog, slower recovery, and accelerated aging.
Dr. Rucker prescribes compounded NAD+ injections for patients who want to restore cellular energy, sharpen mental clarity, and support long-term longevity — with physician oversight and free shipping from Fortress Pharmacy.
What Is NAD+?
NAD+ is a coenzyme found in every living cell. It is the essential molecule that powers the mitochondria — your cellular power plants — and serves as a critical cofactor for over 500 enzymatic reactions in the body. It fuels the sirtuins (longevity proteins), activates PARP DNA repair enzymes, and regulates the circadian clock. Without adequate NAD+, cells cannot produce energy efficiently, DNA damage accumulates, and the hallmarks of aging accelerate. NAD+ levels decline ~1% per year after age 30 — by 50, most people have half the NAD+ they had at 20.
Mitochondrial Energy Production
NAD+ is the primary electron carrier in the mitochondrial electron transport chain. Without it, cells cannot produce ATP — the universal energy currency. Restoring NAD+ directly increases cellular energy output, reducing fatigue at the most fundamental biological level.
DNA Repair & Sirtuin Activation
NAD+ is the essential substrate for PARP enzymes (DNA repair) and sirtuins (longevity proteins SIRT1–SIRT7). Sirtuins regulate inflammation, stress resistance, metabolism, and lifespan. Higher NAD+ = more sirtuin activity = slower biological aging.
Cellular Senescence & Inflammation
NAD+ depletion drives cellular senescence — the accumulation of 'zombie cells' that secrete inflammatory signals (SASP). Restoring NAD+ reduces senescent cell burden, lowers systemic inflammation, and supports healthy tissue renewal.
The NAD+ Decline Timeline
NAD+ levels fall predictably with age — and the symptoms that follow are not inevitable. They are correctable.
| Age Range | Relative NAD+ Level | Common Symptoms |
|---|---|---|
| 20s | ~100% (peak) | High energy, fast recovery, sharp cognition, lean body composition |
| 30s | ~75–85% | Mild fatigue onset, slower recovery, early cognitive fog, metabolism slowing |
| 40s | ~50–60% | Noticeable fatigue, brain fog, weight gain, reduced exercise capacity, poor sleep |
| 50s | ~35–45% | Significant energy decline, muscle loss, metabolic dysfunction, mood changes |
| 60s+ | ~25–35% | Chronic fatigue, cognitive decline, increased disease risk, frailty |
| With NAD+ Therapy | Restored to youthful range | Improved energy, cognition, recovery, body composition, and longevity markers |
What NAD+ Addresses
Because NAD+ is foundational to cellular function, its effects span every system in the body — from brain to muscle to immune function.
Why I Prescribe NAD+
"NAD+ is the molecule I reach for when a patient tells me they're doing everything right — sleeping, training, eating well — and they still feel like they're running on empty. That's a mitochondrial problem, and NAD+ is the most direct intervention we have."
"What I find compelling about NAD+ therapy is how foundational it is. We're not targeting one symptom — we're restoring the cellular infrastructure that everything else depends on. When NAD+ levels are optimized, patients notice improvements in energy, cognition, recovery, and mood simultaneously. It's not a stimulant — it's a restoration."
"For my TRT patients, NAD+ is often the missing piece. Testosterone tells the body what to do — build muscle, burn fat, drive libido — but the cells need energy to execute those signals. NAD+ provides that energy at the mitochondrial level. The combination produces results that neither therapy achieves alone."
"I prefer subcutaneous injections over IV infusions for most patients — better bioavailability than oral supplements, far more convenient than IV, and the dosing is precise. Most patients notice a meaningful difference within 2–4 weeks of starting a consistent protocol."
Learn More About NAD+
Watch leading researchers and physicians explain the science behind NAD+ and why it's become central to longevity medicine.
NAD+ and Aging: What the Science Actually Says
Dr. David Sinclair on NAD+, Sirtuins, and Longevity
NAD+ Injections vs. Supplements: Which Works Better?
How NAD+ Boosts Energy, Brain Function, and Recovery
Typical Dosing Protocol
Dr. Rucker tailors NAD+ dosing to each patient's age, symptoms, and goals. Subcutaneous injection is the preferred route for ongoing maintenance.
- High bioavailability (~90%)
- Self-administered at home
- Precise dosing
- Daily or every-other-day protocol
- Most cost-effective ongoing option
- 100% bioavailability
- Requires clinic visit
- Typically 250–1000mg per session
- 4–8 hour infusion time
- Best for loading / acute protocols
- ~25–40% bioavailability
- No prescription required
- Convenient but less potent
- Good for maintenance support
- Not a substitute for injection
Daily subcutaneous injections to rapidly restore NAD+ levels. Most patients notice improved energy and mental clarity within 1–2 weeks. Some patients opt for an IV loading session (500–1000mg) before transitioning to SQ maintenance.
Continued restoration and optimization. Cognitive improvements, better sleep quality, and enhanced exercise recovery become more pronounced. Dr. Rucker adjusts dosing based on response.
Long-term maintenance to sustain elevated NAD+ levels. Many patients continue indefinitely as part of their longevity protocol. Pairs well with TRT, BPC-157, and tirzepatide for comprehensive optimization.
* NAD+ is a compounded prescription medication. Dr. Rucker will review your intake form and issue a prescription before your order ships.
The Longevity Stack: NAD+ + TRT + BPC-157
Dr. Rucker's most comprehensive optimization protocol combines three complementary therapies that address energy, hormones, and tissue repair simultaneously.
- Restores mitochondrial ATP production
- Activates sirtuins and DNA repair
- Reduces cellular senescence
- Amplifies response to TRT
- Restores testosterone to optimal levels
- Builds lean muscle, burns fat
- Drives motivation and libido
- Works better with high NAD+ levels
- Heals tendons, joints, and gut
- Triggers angiogenesis and fibroblast activation
- Reduces systemic inflammation
- Supports recovery from training
Ask Dr. Rucker about combining NAD+ with your TRT and peptide protocol — the Longevity Stack is Dr. Rucker's most comprehensive optimization program.
Common Questions
How is NAD+ injection different from taking NMN or NR supplements?
NMN (nicotinamide mononucleotide) and NR (nicotinamide riboside) are oral precursors that the body converts to NAD+. Their bioavailability is 25–40% at best, and conversion efficiency varies significantly between individuals. Subcutaneous NAD+ injection delivers the molecule directly into the bloodstream at ~90% bioavailability, bypassing the conversion step entirely. The clinical effect is substantially stronger and more consistent than oral supplementation.
How quickly will I notice results?
Most patients report improved energy and mental clarity within 1–2 weeks of starting the loading phase. Sleep quality improvements are often among the first changes noticed. Athletic recovery and mood improvements typically follow within 2–4 weeks. Longevity and anti-aging effects (cellular repair, inflammation reduction) occur over months of consistent use.
Are there any side effects?
NAD+ injections are generally very well tolerated. The most common side effects are mild and transient: flushing, nausea, or fatigue during IV infusions (much less common with SQ injections). Some patients experience a brief 'detox' effect in the first week as cellular repair processes activate. NAD+ is a naturally occurring molecule — it is not a foreign drug.
Can I take NAD+ with TRT or other peptides?
Yes — NAD+ is commonly combined with TRT, BPC-157, tirzepatide, and other peptides. There are no known adverse interactions. In fact, the combination of NAD+ and TRT is synergistic: NAD+ provides the cellular energy that allows testosterone to exert its full anabolic and metabolic effects.
How long do I need to stay on NAD+ therapy?
NAD+ levels will decline again if therapy is discontinued, as the underlying aging process continues. Most patients choose to continue long-term maintenance (2–3x weekly SQ injections) as part of their longevity protocol. Some patients cycle — doing a loading phase 2–3 times per year. Dr. Rucker will help you design a protocol that fits your goals and lifestyle.
Is NAD+ therapy covered by insurance?
NAD+ therapy is not covered by insurance as it is prescribed for optimization and longevity rather than treatment of a specific disease. Compounded NAD+ injections are significantly more affordable than IV infusion therapy — Dr. Rucker's team will provide pricing after your intake form is reviewed.
What is the difference between NAD+ and NADH?
NAD+ (oxidized form) and NADH (reduced form) are two states of the same molecule. NAD+ is the form that accepts electrons in cellular energy production — it is the 'empty battery' that gets charged by the mitochondria. When we refer to 'NAD+ therapy,' we are restoring the total pool of this coenzyme, which the cell then cycles between NAD+ and NADH as needed.
Ready to Restore Your Cellular Energy?
Submit your request below. Dr. Rucker will review your health history, approve your prescription, and your NAD+ will ship directly from Fortress Pharmacy — free shipping included.
Request NAD+ TherapyMedical disclaimer: NAD+ is a compounded prescription medication. This offer is subject to Dr. Rucker's clinical review. Individual results may vary. Not a substitute for medical treatment of diagnosed conditions.