IV therapy and NAD+ injections work at completely different levels — and most patients serious about longevity and performance use both. IV therapy delivers vitamins, minerals, and fluids directly into the bloodstream for fast, targeted symptom relief. NAD+ injections address cellular machinery itself — replenishing a coenzyme that drives mitochondrial energy production and DNA repair, and that declines roughly 50% between your 30s and 60s. Neither replaces the other.
What Is IV Vitamin Therapy?
Intravenous vitamin therapy delivers a customized blend of nutrients — vitamins, minerals, amino acids, and hydration — directly into the bloodstream via a slow-drip IV line. The critical advantage over oral supplements is bioavailability: oral nutrients are absorbed through the digestive tract at varying rates, with much of the dose lost before reaching systemic circulation. IV delivery bypasses digestion entirely, achieving near 100% bioavailability immediately.
This matters most when you need a significant nutrient impact quickly — recovering from illness, jet lag, intense training, dehydration, or a night of poor sleep. The effects are felt within hours of the infusion, making IV therapy the most practical tool for acute symptom management and short-term optimization.
At Solace, the IV wellness menu includes:
- Myers Cocktail: The foundational formula — vitamin C, B-complex, magnesium, calcium, zinc. Starting at $120.
- Energy Boost: B12, B-complex, L-carnitine — for fatigue and cognitive performance.
- Immunity Boost: High-dose vitamin C, zinc, selenium, glutathione push. Starting at $140.
- Beauty Glow: Glutathione, biotin, vitamin C — skin brightness and antioxidant saturation.
- Athletic Recovery: Amino acids, anti-inflammatory compounds, magnesium. Post-competition or post-surgery.
- Hydration: Pure IV fluids with electrolytes — the fastest hangover, illness, or dehydration recovery.
What Are NAD+ Injections?
NAD+ (nicotinamide adenine dinucleotide) is a coenzyme found in every cell of the human body. It is the central molecule in cellular energy production — the Krebs cycle, the electron transport chain, and mitochondrial ATP synthesis all depend on adequate NAD+ levels. It also plays a direct role in DNA repair, sirtuins (the proteins associated with longevity research), and the regulation of circadian rhythms.
The problem: NAD+ levels decline sharply with age. Published research, including the landmark Rajman, Chwalek, and Sinclair review in Cell Metabolism (2018), documented that NAD+ drops approximately 50% between the 30s and 60s — a decline associated with mitochondrial dysfunction, decreased resilience, slower recovery, and the progressive metabolic changes associated with aging.
NAD+ cannot be effectively replenished through diet alone. Oral NAD+ precursors (NMN, NR) have limited bioavailability. Intramuscular injection delivers NAD+ directly into tissue for rapid cellular uptake, bypassing the digestive process that degrades oral forms.
At Solace, NAD+ injections are administered as 100–200 mg intramuscular injections. Each session takes 10 to 15 minutes. NAD+ IV drips are available elsewhere but cause flushing, nausea, and chest tightness that many patients find intolerable — the IM injection format at Solace delivers the benefits without those side effects. Results build cumulatively over one to two weeks per session. Most patients do a loading series of four to eight sessions, then monthly maintenance.
Side-by-Side Comparison
| IV Therapy | NAD+ Injection | |
|---|---|---|
| Administration method | Intravenous drip | Intramuscular injection |
| Session duration | 30–60 minutes | 10–15 minutes |
| Bioavailability | ~100% (IV) | High (IM) |
| Primary targets | Hydration, vitamins, immunity, acute recovery | Cellular energy, mitochondrial function, DNA repair |
| Effects timeline | Within hours of infusion | 1–2 weeks cumulative; builds over sessions |
| Best for | Acute: fatigue, illness, hangover, jet lag | Chronic energy, longevity, metabolic optimization |
| Frequency | As needed; or weekly/biweekly | Loading series, then monthly maintenance |
| Oral substitute available? | No — digestive absorption significantly limits vitamins | No — oral NMN/NR have much lower bioavailability |
| Solace price | From $120 | $150/session |
Who Should Choose Which?
IV therapy is the better choice if you want: Immediate results for a specific symptom — fatigue, hangover, post-workout recovery, pre-event energy, or fighting an oncoming illness. It's also the right tool if you have a specific nutrient deficiency (low magnesium, low B12, inadequate vitamin C) that you want to address directly. The acute response makes it highly practical for busy patients who want to feel better the same day.
NAD+ injections are the better choice if you want: Sustained improvement in cellular energy, cognitive clarity, metabolic efficiency, and recovery capacity over time. Patients in their 40s and 50s who feel like their energy, stamina, and mental sharpness have progressively declined often describe NAD+ as the treatment that finally made a meaningful difference. It's also the appropriate intervention if you're approaching wellness from a longevity perspective rather than symptom management.
The case for combining both: IV therapy and NAD+ address the same ultimate goal — optimal cellular function — from two different entry points. IV therapy supplies the raw materials (vitamins, cofactors, antioxidants) that cells need to run efficiently. NAD+ restores the cellular machinery that uses those materials. Most longevity-focused patients at Solace do a monthly IV drip alongside quarterly NAD+ loading series. Dr. Flávio can design a protocol that integrates both based on your specific labs and goals.
Why Not Just Take Oral Supplements?
This is the most common question — and the answer is bioavailability. Oral vitamin C is absorbed at roughly 50–70% at moderate doses and drops sharply at higher doses. Oral magnesium is poorly absorbed regardless of form. Oral B12 absorption requires intrinsic factor, a stomach protein that becomes less efficient with age.
Oral NAD+ precursors (NMN, NR) do cross into systemic circulation in meaningful amounts, but the conversion to active intracellular NAD+ is indirect and dose-limited. Published comparisons of injectable vs. oral NAD+ consistently show higher tissue NAD+ levels from injectable forms. When the goal is therapeutic effect rather than basic nutritional maintenance, injection delivers results that oral supplementation cannot reliably match.
Fort Myers Pricing at Solace
- IV Therapy: From $120 (Myers Cocktail) to $180+ (specialty formulations). Most sessions 30–60 minutes.
- NAD+ Injection: $150/session. Loading series of 4–8 sessions recommended for maximum benefit.
- Combination protocols: Dr. Flávio designs individualized schedules based on your labs, symptoms, and health goals. A functional medicine lab panel is available for baseline metabolic assessment.
Rajman, Chwalek, Sinclair. "Therapeutic potential of NAD-boosting molecules." Cell Metabolism. 2018;27(3):529–547.
Cell Metabolism — NAD+ Research →Frequently Asked Questions
Can I do IV therapy and NAD+ in the same visit?
Yes — and many Solace patients do. The two treatments are fully complementary and address different aspects of cellular health. A common combination is an Energy Boost or Myers Cocktail IV alongside a NAD+ IM injection. There are no known interactions between standard IV vitamin formulations and NAD+. Dr. Flávio can design a protocol that integrates both based on your goals.
Why does Solace offer NAD+ as an injection instead of an IV drip?
NAD+ given intravenously — even at low doses — commonly causes flushing, nausea, chest tightness, and a feeling of racing heart during the infusion. Managing these side effects requires very slow administration over two to four hours, making NAD+ IV drips a significant time commitment with considerable discomfort. The intramuscular injection format avoids the IV flush entirely, delivers NAD+ with high bioavailability, and takes only 10 to 15 minutes. For most patients, the IM route achieves equivalent therapeutic benefit without the discomfort and time cost of IV administration.
Do I need NAD+ injections in my 40s?
Not necessarily — but many patients in their 40s experience the early signs of NAD+ decline: progressive fatigue that doesn't resolve with adequate sleep, declining mental clarity and focus, reduced exercise recovery, and a general sense that the body doesn't bounce back the way it used to. These symptoms often correlate with measurable mitochondrial changes. If you're experiencing them, NAD+ supplementation via injection is a clinically rational intervention. Dr. Flávio can review your functional medicine labs to assess whether your metabolic markers support NAD+ therapy.
Which is better for energy?
It depends on the kind of energy you need. For an acute boost — needing more energy today for a meeting, a workout, or a long day — an Energy Boost IV with B12, B-complex, and L-carnitine delivers fast, same-day results. For sustained, foundational energy improvement over weeks and months — the kind that changes how you feel every day, not just after an infusion — NAD+ is the more powerful long-term tool. The ideal approach for patients serious about energy optimization is both: IV therapy for acute needs and performance days, NAD+ for the baseline cellular energy that underlies everything else.
Are oral NAD+ precursors (NMN, NR) a substitute for injections?
Oral NMN and NR do raise systemic NAD+ levels to a meaningful degree — they're not useless. But the conversion from precursor to active intracellular NAD+ is indirect and dose-limited, and published comparisons consistently show higher tissue NAD+ levels from injectable forms. For patients already taking oral NAD+ precursors who haven't noticed significant effects after three to four months, switching to injectable NAD+ often produces more noticeable results. Oral supplementation is a reasonable maintenance tool; injection is the appropriate choice when measurable therapeutic improvement is the goal.
What's the best IV drip for a hangover or long flight?
For a hangover or dehydration-driven fatigue — whether from alcohol, illness, or a long-haul flight — the Hydration IV is the most direct solution. It replenishes fluid volume and electrolytes within 30–45 minutes, which is what the body actually needs in those situations. For situations where you also feel run-down or depleted alongside the dehydration, upgrading to the Myers Cocktail or Immunity Boost adds vitamin C, magnesium, and B vitamins that support faster recovery. Many Solace patients book a standing appointment the morning after red-eye flights or before important events.
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NAD+ Injections at Solace · IV Therapy at Solace · Vitamin Injections · Functional Medicine Labs · Peptide Therapy