






N-Stac™ | NMN 500mg + CD38 Inhibitors for Sustained NAD+ Optimization
Taking a high dose of NMN is only half the battle. Your body has an enzyme called CD38 that acts like a drain, using up your NAD+ before your cells can even touch it. If you don't block that drain, much of your supplement goes to waste.
N-Stac fixes this by combining 500mg of pure NMN with Apigenin and Quercetin. These natural ingredients help plug that leak, making sure the NAD+ stays in your system where it can actually go to work. We focus on helping your body absorb and keep what it needs.
Our approach is based on a simple reality: keeping your energy levels high requires both adding fuel and stopping the waste. Every batch is third-party tested so you know exactly what you are putting in your body.
What is inside each serving:
- 500mg NMN: This is the direct fuel your cells need to stay active and healthy.
- 150mg Apigenin + 100 mg Quercetin: These work together to slow down the breakdown of NAD+. By lowering the demand from wasteful enzymes, they make every milligram of NMN more effective.
The result is a better boost for your cellular energy and a real way to support your body's natural repair systems.
SUGGESTED USE
- For best results take on an empty stomach, or with food for those with sensitive stomach
- Each bottle is a 30-day supply.

The CD38 Problem
CD38 is the primary NAD+-consuming enzyme. Research shows it degrades the vast majority of NAD+ in your cells. Even worse, CD38 expression increases with age—exactly when your NAD+ is already declining.
The N-Stac™ Solution
By combining NMN with Apigenin and Quercetin, we inhibit CD38 activity. This dual-mechanism approach allows NAD+ to accumulate rather than being rapidly degraded by age-related enzymatic spikes.
The Science Behind N-Stac
The NMN Supplement Formula
We didn't stop our commitment to quality. We spent that time ensuring our formula remains the gold standard for cellular energy.
We've doubled the NMN at 500mg per dose, while keeping the tried and true CD38 inhibitors the same. Every ingredient is selected based on peer-reviewed longevity research. No fillers, no proprietary hiding.
"Most NMN brands try to sell you 'more milligrams.' We sell you better science. N-Stac doesn't just give you NMN; it includes CD38 inhibitors (Apigenin and Quercetin) to stop your body from destroying the NAD+ you produce."
A direct precursor to NAD+, providing the raw material for cellular energy and DNA repair. At 500mg, we match the dosage used in leading human clinical trials for effective NAD+ elevation.
A natural flavonoid that reduces CD38 activity. It acts as a plug for the NAD+ leak, while providing neuroprotective and anti-inflammatory benefits.
Complements apigenin in CD38 inhibition. Known for cardiovascular support and potential senolytic properties—the removal of zombie cells that drive aging.
NMN Supplement Comparison
How N-Stac™ stacks up against standard industry options.
| Feature | N-Stac™ | Basic NMN | High-Dose NMN |
|---|---|---|---|
| CD38 Inhibitors |
Apigenin + Quercetin |
||
| NMN Dosage |
500mg
Clinical Grade
|
250mg | 1000mg+ |
| Third-Party Tested | Varies | Unverified | |
| Price per Day | $1.33 | $0.85 | $2.10 |
| Bioavailability | Optimized | Standard | Low Yield |
| Target Use | Longevity Science | Entry Level | Mass Market |
Maximum Cellular Efficiency
Don't just pour more NMN into a leaky bucket. N-Stac is designed to fix the leak first, ensuring every milligram of NMN is actually utilized for cellular repair and energy production.

60 Day Guarantee
We offer a 100% satisfaction guarantee on all of our supplements.
Simply email our support team at support@mediwellabs.com and we will provide a full refund of the purchase price. No questions asked.
We stand behind our products and are committed to your satisfaction. Try our supplements risk-free today and experience the benefits for yourself!
Pure. Potent. Proven
Every bottle meets our strict clinical requirements
Frequently Ask Question
We've formulated this NMN supplement 500 mg to provide optimal cellular support, helping you maintain vitality and healthy NAD+ levels as you age.
How we stack up against the big names?
- Tru Niagen: They use a different molecule called NR and only focus on the production side. They also tend to be much more expensive.
- Life Extension & Elysium Basis: These brands also use NR and often miss the preservation side of the equation. You end up paying more for a single-pathway approach.
- Renue by Science: While they focus on NMN, they don't include the components needed to protect that NMN from being drained by enzymes.
- Thorne ResveraCel: This is a premium-priced option that includes some similar ingredients but doesn't specifically target the CD38 enzyme like we do.
The Bottom Line:
N-Stac is the only supplement that combines NMN production with CD38 protection research. At $39.98, it offers better value than most premium brands while providing a more complete way to support your cellular health. Plus, our formula is clean, third-party tested, and fully transparent—no hidden blends.
How does it compare to other NMN brands?
When you look at most NMN or NAD+ brands, they only focus on one thing: giving you more of the ingredient. N-Stac is different because it handles both making more energy and keeping it from being wasted.
What makes N-Stac stand out:
- A Two-Way Approach: Most brands only help your body make NAD+. We add apigenin and quercetin to help stop your body from breaking it down so quickly.
- Patent-Pending Design: Our formula isn't just about high doses; it’s based on specific research into how your cells actually use these nutrients.
- Better Absorption: We include 10mg of Bioperine to make sure your body can actually use every ingredient in the capsule.
What makes the N-Stac formula patent-pending?
N-Stac is patent-pending because it tackles the NAD+ problem from two different angles at the same time. Most supplements only try to fix the supply side by adding more NMN, but that is only half the solution.
Our formula works on two pathways:
- The Production Side: It provides 500mg of NMN to help your cells create new NAD+.
- The Preservation Side: It uses 150mg of apigenin and 100mg of quercetin to help manage CD38. This is the enzyme that naturally breaks down and wastes your NAD+ as you get older.
By helping your body make more while also protecting what you already have, N-Stac offers a much more effective way to maintain your levels. We also included 10mg of Bioperine to make sure your body can actually absorb these ingredients.
Does this contain any artificial ingredients?
No. N-Stac is made without artificial fillers, colors, or preservatives. The formula is built on natural, plant-based ingredients like NMN, apigenin, and quercetin, along with black pepper extract (Bioperine) to help with absorption.
We use vegan capsules and ensure the entire process is Non-GMO. Everything is produced in a cGMP-certified facility that follows FDA standards. We also have every batch third-party tested for purity, and we are happy to provide the Certificates of Analysis if you'd like to see them. What you see on the label is exactly what you get—no hidden blends or secret additives.
How do I take N-STAC for the best results?
We recommend taking two capsules daily, ideally in the morning on an empty stomach, or with food for those with sensitive stomach. This helps with maximum absorption so you can feel the energy and focus benefits throughout your day.
Is this NMN supplement 3rd party tested?
Yes. Quality is our priority. Every batch of our nmn supplement undergoes rigorous 3rd party laboratory testing to ensure purity
How long until I notice a difference?
While many users report improved mental clarity and physical energy within the first two weeks, the most significant cellular repairs and metabolic improvements typically occur after 30 to 60 days of consistent use.
Does N-STAC need to be refrigerated?
N-STAC is shelf-stable at room temperature. However, to maintain maximum potency over long periods, keeping the bottle in a cool, dry place away from direct sunlight is recommended.
Is this N-STAC made in the USA?
Yes. Our supplement is made in USA. Manufactured and quality-tested in a GMP-certified facility to ensure safety, purity, and consistency.
This product is rated 4.9 of 5.0 stars.
It has received 17 reviews.
