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Never pay for what you can’t verify.

Stop guessing if NAD+ works for you.
With Jinfiniti, we test your NAD+ levels first – then optimize your NAD+ formula to suit your body.
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cGMP Certified
Our supplements are made in a GMP-certified facility to ensure consistent quality, safety, and reliable standards.
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Efficacy guarantee
If Vitality Boost doesn’t raise your NAD levels within 30 days, we’ll adjust your formula and re-test until you see optimal results..
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60 day money back guarantee
If you’re unhappy with your Vitality Boost results, we’ll gladly refund your supplement purchase. Tests not included.
Most NAD+ buyers never get an answer.
You’ve heard the hype. You’ve seen the promises. You may have even taken bottles of NAD+. But you’ve never actually *known* if it was working inside your cells. That ends today. Not with another bottle of hope. But with a simple at-home lab test from the lab that created 95% of the NAD+ science you’ve seen quoted online.
Introducing, the 3-step optimization protocol
Get lab-quality NAD testing from your kitchen table. Take the test. See your levels rise. Track your optimization.
The only NAD+ program that proves it works.
intercellularNAD Test
Blood Sample
1. Collect your sample and discover your baseline NAD+ levels
Use the finger-prick device to collect blood spots. Mail it back using the prepaid envelope. Get your personalized report and dosage recommendations in 3-7 days.
daily suppliment
2. Start your daily NAD+ supplement
Begin your provided NAD+ supplement and continue for 30 days.
re test
3. Re-test, measure & optimize
After 30 days, re-test your NAD levels. If your NAD+ levels are not improving we will adjust your formula, free of charge, until they are optimal.

Developed in the lab that defined NAD+ research

What is NAD+ and why is it important?

Nicotinamide adenine dinucleotide (NAD) is the energy currency of your cells. It powers everything from muscle movement to brain function.

Your body makes NAD+ naturally. But production slows down with age.

This creates a cellular energy problem. Your cells can’t repair themselves properly. Energy production drops.

The result? You feel older than you should.

Restoring NAD+ levels helps your cells function like they did when you were younger.

NAD Decline and Longevity

NAD+ is your body’s master energy molecule. It powers over 500 different cellular functions.

As you age, NAD+ drops dramatically. By 50, you have half what you had at 20.

Here’s what happens when NAD+ drops:

  • Energy Crashes: Cells can’t make energy efficiently. You feel drained even after rest.
  • Slower Repair: DNA damage builds up faster than your body can fix it.
  • Brain Fog: Brain cells struggle without adequate NAD+. Focus and memory suffer.
  • Faster Aging: All cellular processes slow down. You age faster than you should.

See our clinical results

Vitality boost jar

Results backed by clinical research

Clinical studies show our formula works fast.

26 people between ages 35-65 took our NAD+ Booster daily. Within 4 weeks, most participants doubled their NAD+ levels.

85% reached the optimal range. The average boost was 100% higher than baseline.

We tracked progress using advanced Intracellular NAD® testing. This measures NAD+ inside your actual cells, where it actually works.

This chart shows the steady progress participants experienced week by week.

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Fig. 1 – Clinical Trial Data: 26 volunteers aged 35–65 took 2000mg of Jinfiniti Vitality Boost daily. Intracellular NAD levels were measured at two baseline points and 2 and 4 weeks post-supplementation. At 4 weeks, 22 of 26 (85%) participants had optimized NAD levels. Two others were near optimal with a slight dosage increase, while one showed modest improvement, and another showed no change. On average, NAD levels doubled.

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Fig. 2: Real data from clinical use. 22 patients in Dr. Richard Delany’ office, aged 45 -94 years old with various health issues, were supplemented daily with 2000mg (2 scoops) of Accuri® Vitality Boost. Dosage was adjusted after retesting if NAD levels were not optimized. 80% of patients had their NAD optimized, some need higher dosage. Significant clinical improvement observed in most patients.

vitality boosts outperforms pure precusor 7c4e4b41

Fig. 3: Real Data from a Functional Medicine Clinic that uses Pure Precursor from another brand. 12 patients had before and after supplementation NAD levels measured with the Jinfiniti NAD test. NAD levels were elevated by pure precursor in all but one patients. However, no patient had optimized NAD levels (>40μM). Vitality Boost works much better in these same patients.

Real results from clinical trials

Clinical studies prove our formula works faster and better than single ingredients.

The science: Four ingredients work together through different pathways. This multi-pathway approach beats single NAD+ precursors every time.

The proof:

  • 85% success rate in clinical trials (Figure 1)
  • Validated in hundreds of medical practices (Figure 2)
  • 3x more effective than standalone NAD+ supplements (Figure 3)

Real benefits: Users experience noticeable improvements in energy, sleep, and cognitive function within weeks.

Verified results: We use precise NAD+ testing to track your progress and provide personalized guidance for optimal outcomes.

See our formula

NADlevel changes

What makes our NAD+ supplement formula unique?

Most NAD+ supplements only give you one ingredient. We give you four that work together.

Our formula includes the most direct NAD+ precursor. But we don’t stop there.

We add D-ribose to fuel your body’s natural NAD+ recycling system. Creatine supports cellular energy production. Niacinamide helps maintain steady NAD+ levels.

Each ingredient targets NAD+ production differently. Together, they create better results than any single compound alone.

Our precision ingredient formulation

While others focus on one pathway, we target four different routes to boost NAD+.

Our comprehensive solution:

  • NAD Precursor – Direct conversion to NAD+ in your cells.
  • Niacinamide – Keeps your body’s NAD+ recycling system running smoothly.
  • D-Ribose – Supplies the raw materials for NAD+ and energy production.
  • Creatine – Ensures your muscles and brain can use NAD+ effectively.

Better results: This scientifically-validated combination outperforms single precursors by addressing cellular energy from multiple angles.

Compared to NAD therapy

Formula

Safety and Purity You Can Trust

  • Third-party tested for purity. Every batch tested by independent labs. Full transparency with available certificates.
  • Pharmaceutical-grade. Made in FDA-registered, cGMP facilities with clinical-grade manufacturing.
  • Proven safety profile. Clinical studies show safety at doses up to 1,200mg. Creatine has 30+ years of research.
  • Nothing artificial. No unnecessary colors, preservatives, or fillers. Pure, bioavailable ingredients only.
  • Quality promise. Your satisfaction is guaranteed. We stand behind every product we make.
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NAD Booster vs. NAD Therapy

Most people think IV therapy is the gold standard for NAD+. Clinical data tells a different story.

Vitality NAD+ Booster users reached optimal NAD+ levels in just 4 weeks. That’s faster than many IV protocols and way more convenient.

Almost all NAD+ research available uses oral precursors, not expensive IV treatments.

No clinic visits. No high per-session costs.

You get better results at home for a fraction of the price.

NAD Booster results compared to NAD therapies

Our clinical data shows oral supplementation beats IV and injection therapies.

Why IV therapy falls short: The NAD+ molecule is too large to enter cells directly. It breaks down quickly in your bloodstream before cells can use it.

Injection limitations: SubQ shots work slightly better than IV but still don’t reach optimal levels. Plus they’re expensive and inconvenient.

Our advantage: We give your cells the building blocks to make NAD+ naturally. This works with your body’s processes instead of against them.

The result: Better NAD+ levels in 4 weeks, at home, for a fraction of the cost. (Figure 1)

Versus others

40 years of research and innovation

10K+

published studies on NAD+ benefits. Millions of daily users worldwide.

2K+

studies support our FDA-approved ingredients. Proven safe and effective.

1K+

customers trust us, including top physicians and leading longevity clinics.

10+

world-class scientists created our formulas, led by Dr. She and our health board.

Doctor Jin Xiong She 711fd549
“I Created the at home NAD+ Test to End the Misinformation.” – Dr. Jin-Xiong She
Dr. Jin-Xiong She isn’t a supplement marketer. He’s a world-renowned precision medicine PhD and genetics researcher who spent 40 years building the tools to measure human biology accurately. He created this system out of frustration with an industry built on hype.
  • 400+ Published Research Papers
  • $100 Million in Research Grants
  • CLIA Laboratory Director
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The Reformulation Guarantee
No one else can offer this*
  • At month two we re-test your NAD levels
  • If there is no improvement we adjust your formula, for free
  • We retest again in 60 days, an continue to adjust your formula until your results improve
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Your Limited-Time Offer – Save 70%
With Jinfinity you get a definitive, data-backed answer and a
personalized path in 60 days.
Your NAD+ levels rise – or we reformulate free
What’s Included:
  • 2x CLIA-Certified NAD+ Test

    $396  $70 one time You save $326 (70% off)

  • 1x NAD+ supplement per month

    $118  $88 one time You save $30 (25% off)

  • FREE Dr Jin community access
  • FREE amendments to your NAD+ formula, as required
  • Cancel anytime. No hidden fees. No difficult cancel process.
  • Reformulation guarantee. No one else can offer this.

$158 today $514.00 RRP

2 NAD+ tests and one months supply NAD+ formula

$88/month $118.00 RRP

Begins one month from today. CANCEL ANYTIME.
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What to expect when you start with Jinfiniti
Users experience noticeable improvements in energy, sleep, and cognitive function within weeks of starting their Jinfiniti protocol.
Week 1-2
Creatine boosts energy, sharpening mental clarity and performance
Month 1
NAD+ levels rise, supporting sleep and faster recovery from stress and exercise.
Month 2-3
Sustained energy, noticeably sharper focus, and better physical endurance.

Month 6+
Optimized cellular repair, metabolism, and improved aging biomarkers.
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Only Two Things Can Happen
(And You Win Either Way)
This is the power of measuring first. No more gray area. No more “maybe.” After your second test, you will fall into one of two camps–and both give you the clarity you came for.
Outcome One
Your NAD+ improves
Your second test shows your NAD+ levels have lifted. You’ve got proof it’s working, so you can keep going with confidence.
Your icNAD result from the current test
illustration icnad result 1
Outcome Two
Your NAD does NOT improve
Your second test does not show a significant rise in NAD+. We reformulate your protocol (free) until we your results show the appropriate lift in NAD+.
Your Limited-Time Offer – Save 70%
With Jinfinity you get a definitive, data-backed answer and a
personalized path in 60 days.
Your NAD+ levels rise – or we reformulate free
What’s Included:
  • 2x CLIA-Certified NAD+ Test

    $396  $70 one time You save $326 (70% off)

  • 1x NAD+ supplement per month

    $118  $88 one time You save $30 (25% off)

  • FREE Dr Jin community access
  • FREE amendments to your NAD+ formula, as required
  • Cancel anytime. No hidden fees. No difficult cancel process.
  • Reformulation guarantee. No one else can offer this.

$158 today $514.00 RRP

2 NAD+ tests and one months supply NAD+ formula

$88/month $118.00 RRP

Begins one month from today. CANCEL ANYTIME.

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Frequently Asked Questions

Have questions about NAD testing? Find answers about how the test works, what your results mean, and next steps. We’ve covered the most common concerns customers have before ordering.
How accurate is the test?
Our CLIA-certified lab delivers clinical-grade accuracy with a coefficient of variation of 3.1%. The same quality standards your doctor would use.
How long do results take?
You’ll receive your digital report in 3-7 business days after we receive your sample.
Is the finger prick painful?
Most people describe it as a quick pinch. The lancet is designed for minimal discomfort.
What if I can’t draw enough blood?
Send your sample anyway. Our lab can process most samples, even with smaller blood spots.
How often should I test?
We recommend testing before starting supplementation, then retesting after 6-8 weeks to track progress.
What’s included in my results?
Your NAD level, personalized dosage recommendations, and explanations of what your numbers mean. Plus access to Dr. Jin-Xiong She’s webinars.
Can I take this test if I’m on medications?
Yes, most medications don’t interfere with NAD testing. Contact us if you have specific concerns.
Do I need to fast before testing?
No fasting required. Collect your sample at any time of day.
See what our customers are saying
Discover how our customers have transformed their health and longevity with Jinfiniti’s advanced solutions!
Customer Reviews
5.0 Based on 75 Reviews
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Filter Reviews:
PV
10/19/2026
Paul V.

From 30 RPM to more like 50 RPM.

I've been taking the supplement for 2 weeks and already notice that I'm thinking differently. I'm not struggling for words as much and it's easier to remember things. I'm moving faster...instead of going at 30 RPM, now it's more like 50 RPM.

MX
10/16/2026
Meiyi X.
us US

Wonderful Experience with Vitality↑ NAD+ Booster!

My husband and I have both been using Dr. Jin’s Vitality NAD+ Booster, and we’re very happy with our experience! We’ve noticed that we’re sleeping much better than before and feeling more energetic throughout the day. Better sleep and sustained energy have made a wonderful difference in how we feel. We’re delighted with our experience so far and truly appreciate Dr. Jin for introducing us to this product. Thank you, Dr. Jin! 😊❤️

IJ
10/13/2026
Ijay J.

I have been raving about Vitality NAD to everyone

I have been using NAD for over a year and it has been amazing. Thank you for creating such a high quality product - the results are undeniable. I am interested in other products as well. I have been raving about it to everyone

YH
10/12/2026
Yuhan H.
us US

We feel more energetic and sleep better

It’s such a pleasure to know you and both my husband and I really enjoyed your NAD + booster and we feel more energetic and sleep better too. Thank you again to bring your great product to the market. Wish you, your family and your team a wonderful weekend !

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