NAD+ · Review
This review explains NAD+’s central role in cellular energy metabolism and maintenance, and summarizes evidence that NAD+ levels decline with age in multiple tissues.
Read the sourceBack to Precision Nutrition
Zyndio scientific partner
Representative chewable format
Ordering coming soon.
At-home testing
Intracellular NAD+ Test Kit
Find out your NAD+ level from home, then use the result to guide your routine.
$198.00
At-home sample collection · Lab-processed results
- At-home finger-prick sample collection
- Laboratory measurement of intracellular NAD+
- Results with your NAD+ level in micromolar (μM)
- Sold separately; not required to buy supplements
Zyndio scientific partner
About the product
An at-home finger-prick collection kit for laboratory measurement of intracellular NAD+. The test is sold separately and is optional when purchasing supplements.
| Collection | At-home finger prick |
|---|---|
| Laboratory | CLIA-certified testing |
| Return shipping | Prepaid sample return label |
How it works
- Follow the collection instructions included with your kit.
- Return your sample using the prepaid label provided.
- The supplier reports results approximately one week after the sample arrives at the laboratory.
Who it’s for
- Anyone starting an NAD+ supplement who wants a baseline
- People who want to see whether their routine is working
- Anyone who prefers to measure rather than guess
For informational and wellness purposes. Do not use test results to make medical decisions without consulting a healthcare provider.
Meet the scientist
Precision nutrition, grounded in measured biology.
Professor Jin-Xiong She, PhD is Zyndio’s scientific partner and the founder and CEO of Jinfiniti Precision Medicine. His work brings molecular genetics, biomarker testing and nutritional formulation together.
His academic career spans four decades, with more than 500 peer-reviewed publications. His approach starts with understanding your biology, then measuring how it changes.
Meet Dr. She and explore the partnershipThe research behind the ingredients
NMN · Clinical trial
In a 60-day randomized, placebo-controlled trial of 80 healthy middle-aged adults, NMN raised blood NAD+ concentrations compared with placebo, was well tolerated, and was associated with longer six-minute walking distance.
Read the sourceThese studies examine individual ingredients, often at different doses or in specific populations. They did not test this exact Zyndio product. Research summaries are educational, and individual results vary.
Test. Act. Optimize.
- 01
Test
Understand your starting point with biomarker testing.
- 02
Act
Choose support informed by your needs and healthcare provider.
- 03
Optimize
Measure again and adjust your routine with appropriate guidance.
Dr. She’s philosophy in 75 seconds
Intracellular NAD+ Test Kit
$198.00 · At-home sample collection · Lab-processed results
Ordering coming soon.
Complete your routine
Vitality↑ NAD+ OptimizationView product details
A dual-action daily powder that supports healthy NAD+ levels and cellular energy.*
1,000 mg active formula per serving · 62 servings · Net Wt. 62 g (2.2 oz)
$118.00
Ordering coming soon.
Representative chewable formatVitality↑ NAD+ Optimization ChewableView product details
The same 1,000 mg NAD+ Optimization formula in a lozenge you can dissolve under your tongue or chew on the go.*
1,000 mg active formula per tablet · 62 chewable tablets
$118.00
Ordering coming soon.
Pure NMNView product details
Pure β-nicotinamide mononucleotide, a direct NAD+ precursor, with nothing added.*
500 mg NMN per serving · 62 servings · Net Wt. 31 g (1.1 oz)
$58.00
Ordering coming soon.
Frequently asked questions
Do I need this test to buy an NAD+ supplement?
No. The test is sold separately and is completely optional.
When should I test?
A common approach is to test before you start a supplement, then again about 4 weeks later to see how your level changed.
What does “intracellular” mean?
It means the test measures NAD+ inside your cells, where it does its work, rather than only in the fluid portion of the blood.
Is this a medical diagnostic test?
No. It’s a wellness test. Share your results with a healthcare provider before making medical decisions.
Nutrition and prescription care are separate.
These supplements are over-the-counter products and are not prescribed or physician-reviewed. Zyndio’s prescription NAD+ therapies follow a separate physician-reviewed care pathway.
Explore prescription NAD+*These statements have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.
Consult your healthcare provider before starting any supplement, especially if you are pregnant or nursing, have a medical condition, or take medication. Keep out of reach of children. Individual results vary.