NAD+ IV vs NMN/NR Oral: My Bloodwork After 90 Days of Each

NAD+ is the longevity space’s most expensive religion. Every clinic in the wellness corridor of every major city is selling 500-1000 mg IV drips at $400-800 a session. Every supplement company is pushing NMN or NR capsules as the “NAD+ precursor” that does the same thing without the needle. Half the influencers in the space have gone all-in on one camp; the other half on the other. Both camps are wrong about what they’re attacking.

I’ve run both for serious blocks of time. NAD+ IV at 750 mg, twice weekly for 90 days at a clinic in Bangkok. Oral NMN at 1 g/day for the next 90 days, no IVs. Bloodwork on both ends. Subjective tracking the whole way through. Real numbers. Real cost analysis. No supplement company paying me to lie about either side.

Here’s what actually happens — and which one I’d run if I had to pick one.

What NAD+ Actually Is (And Why You Care)

NAD+ (nicotinamide adenine dinucleotide) is the cofactor your mitochondria need to make ATP. Every cell in your body uses it. It’s also the substrate for the sirtuins (SIRT1-7) — the longevity enzymes Sinclair built his career on — and for PARP, the DNA-repair enzyme that gets hammered by oxidative stress and aging. NAD+ levels in human tissue drop roughly 50% between age 40 and age 60. That decline correlates with basically every metabolic and neurodegenerative disease you don’t want.

Restoring NAD+ — in theory — restores mitochondrial function, sirtuin activity, and DNA repair. In theory. The translation from “in theory” to “in your bloodstream” is where the entire IV-vs-oral debate lives.

NAD+ IV — The Real Experience

The first NAD+ IV is brutal. Not painful — just intense. They start the drip at 250 mg and ramp slowly because anything faster than that and you get chest pressure, jaw tightness, and the unmistakable feeling that you’re about to vomit. A 500 mg drip takes 90 minutes. A 1000 mg drip takes 3+ hours. You sit there. You don’t scroll. You feel everything.

Day-of effect: nothing dramatic the first session. The second session, real. Mental clarity bumps up the same day. By the third session you start to notice the cumulative thing — sharper recall, faster context switching, an inflammation-isn’t-there feeling that’s hard to describe until you’ve had it.

Best results show up at 4–6 weeks of consistent dosing. I ran twice-weekly 750 mg IVs for the full 12 weeks. Cost in Bangkok: roughly $250 per session at a reputable clinic with pharmaceutical-grade NAD+ from a compounding pharmacy. In the US that same protocol runs $5,000–$8,000 per month. Pattaya pricing is closer to Bangkok pricing — one of the reasons biohackers keep showing up here.

NMN and NR — The Oral Argument

NMN (nicotinamide mononucleotide) and NR (nicotinamide riboside) are precursors. Your body converts them to NAD+ enzymatically. The pitch is simple: skip the needle, take a capsule, get the same NAD+ rise.

The reality is messier. Oral NMN has serious bioavailability questions. The cell membrane doesn’t transport NMN directly very well — there’s a transporter called Slc12a8 that some labs say is the gateway and others say doesn’t exist in human tissue. NR, the molecule Chromadex pushed (Tru Niagen), goes through a different conversion pathway and shows up in the blood pretty cleanly. NMN sublingual or liposomal formulations bypass some of the GI losses but cost more.

What’s actually proven in humans:

Oral NR at 300–1000 mg/day raises blood NAD+ levels measurably — the data on this is solid, multiple peer-reviewed RCTs.
Oral NMN at 250–1000 mg/day raises NAD+ in some studies, fails to raise it in others. Newer 2023–2024 data leans toward “yes it works, especially sublingual or liposomal” but there’s noise.
Neither has a clean mortality or biological-age dataset in humans yet. Mice live longer. Worms live longer. The human data is still on the way.

My Bloodwork — The Numbers

I ran whole-blood NAD+ assays through Jinfiniti before the IV block, after the IV block, and after the oral block. Baseline, fasted, AM draws each time.

Baseline (start): 38.2 μM whole blood NAD+ — middle of the age-matched reference range
After 12 weeks NAD+ IV (750 mg 2x/week): 71.4 μM — nearly doubled
4 weeks washout, no NAD+ at all: 41.6 μM — back near baseline within a month
After 12 weeks oral NMN (1 g/day, sublingual liposomal): 56.8 μM — solid bump, but ~20% below the IV peak

Translation: IV NAD+ produces a bigger top-line number. Oral NMN produces a meaningful bump that washes out faster off-protocol. Neither is “fake.”

What I Actually Felt

Subjective effects, both protocols, ranked honestly:

Mental clarity: IV wins clearly. Oral NMN gave me maybe 60% of the IV cognitive effect.
Recovery from training: IV wins, but not by as much as the cognitive gap. Oral was about 80% of IV here.
Sleep quality: Tie. Both bumped my Whoop sleep performance score by 5–8%.
Skin and energy in the morning: IV wins. Oral did almost nothing for this for me.
Hangover protection (relevant in Pattaya): IV is night-and-day better. NAD+ is the single best hangover prevention I’ve ever tested. Oral barely registers.

If you’re stacking with CJC-1295 / Ipamorelin or running serious recovery peptides like TB-500, the synergy with IV NAD+ is real. The mitochondrial side of recovery and the structural side don’t fight each other.

The Cost Math

Annual cost, Bangkok pricing:

NAD+ IV maintenance (750 mg, twice monthly): $6,000/year
NAD+ IV intensive (twice weekly, 12 weeks, then taper): $8,000/year
NMN sublingual liposomal (1 g/day, premium brand): $1,200/year
NR (Tru Niagen, 600 mg/day): $900/year
Generic NMN powder (vendor risk): $300–$500/year — but COA verification matters more than the savings

For US-based readers, multiply IV cost by 3–4x. Some of you should genuinely consider flying to Bangkok or Pattaya, doing a 4-week intensive block, and going home — the airfare pays for itself.

Stacking — the smart move

Either pathway works better stacked. Bare NAD+ on its own has diminishing returns. What I run now:

Trimethylglycine (TMG) 500 mg/day. Methyl-donor. NAD+ metabolism eats methyl groups; replacing them prevents the homocysteine creep some guys see on long oral NMN runs.
Apigenin 50 mg/day. Inhibits CD38 — the enzyme that destroys NAD+. Cheap and effective.
Resveratrol or pterostilbene — sirtuin activator. Resveratrol has bioavailability issues; pterostilbene is more stable.
Methylated B-complex. Non-negotiable on long oral runs.
Quercetin + fisetin 1g loading 2 days/month for senolytic effect. Different mechanism, complementary goal.

This stack is what makes oral NMN start to close the gap with IV NAD+. Naked NMN with no methyl donors and no CD38 inhibitor is fighting your own enzymatic system.

Risks Nobody Wants to Talk About

Two real concerns:

Cancer signaling. NAD+ feeds metabolism. Some preclinical data suggests existing tumors love NAD+ as much as healthy cells do. If you have an active or recent cancer history, do not run high-dose NAD+ without an oncologist who actually understands metabolic oncology — and most don’t.
Methyl trapping. Long oral NMN runs without TMG can drive homocysteine up. Track it on bloodwork. Mine went from 8.4 to 11.2 by week 8 of oral NMN before I added TMG; it came back down to 8.9 within 4 weeks.

The CD38-inhibition concern (apigenin) is real but mostly theoretical at supplement doses. Don’t lose sleep over it.

Which One Should You Actually Run?

The honest answer depends on what you’re optimizing for:

Maximum effect, money no object, you’re 50+: NAD+ IV. The cognitive and recovery gap is real. Twice-monthly maintenance after a 4–6 week intensive load.
You’re 35–50, healthy, want longevity insurance: Oral NMN sublingual or liposomal, 500–1000 mg/day, with the full methyl/sirtuin/senolytic stack above. The cost-benefit favors oral here.
You’re under 35: Don’t bother with either yet. Your endogenous NAD+ is fine. Spend the money on training, sleep, hormones, and don’t waste capital on a deficiency you don’t have.
You’re a hard-charging entrepreneur burning the candle at both ends: 4-week IV intensive twice a year, oral NMN in between. This is what I do now.

Bottom Line

NAD+ IV works. The bloodwork shows it, the felt experience confirms it, and the wash-out is fast. Oral NMN works less, but it’s the realistic daily tool unless you have unlimited budget and time. The supplement industry overpromises both. The IV-only crowd dismisses oral too fast. The oral-only crowd has never actually done a real IV block and felt the difference.

Run a 4-week IV block once if you can afford it — even just to know what your own baseline could feel like. Then decide. The decision is easier with data than with marketing copy.

Frequently Asked Questions

Is NAD+ IV therapy better than NMN oral supplements?

NAD+ IV bypasses digestion, delivering higher doses directly into bloodstream, potentially producing faster results. However, NMN/NR oral supplements are more convenient and cost-effective. The real answer depends on your bloodwork response—some people show better NAD+ levels with IV therapy, while others respond equally well to oral precursors. Individual metabolism varies significantly.

How much does NAD+ IV therapy cost compared to NMN supplements?

NAD+ IV drips typically cost $400-800 per session, requiring multiple sessions monthly. NMN/NR capsules cost $30-100 monthly. Over 90 days, IV therapy runs $1,200-2,400 versus $90-300 for oral supplements. Cost-effectiveness depends on whether your bloodwork shows superior NAD+ elevation justifying the premium price.

Can NMN or NR oral supplements raise NAD+ levels as effectively as IV?

NMN and NR are NAD+ precursors that convert to NAD+ in your body. Some individuals achieve comparable NAD+ elevations orally; others don't. Bioavailability varies due to digestion and metabolism. Direct bloodwork comparison after 90 days is the only way to determine which route works best for your specific physiology.

About Tony Huge

Tony Huge is a self-experimenter, biohacker, and founder of Enhanced Labs. He has spent over a decade researching and personally testing peptides, SARMs, anabolic compounds, nootropics, and longevity protocols. Tony’s mission is to push the boundaries of human potential through science, transparency, and direct experience. Follow his research at tonyhuge.is.