Top 10 Best NMN Supplements in the US (2025 Edition)
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Time to read 11 min
NMN (Nicotinamide Mononucleotide) has taken center stage in the field of anti-aging and longevity supplements. Backed by exciting scientific research, NMN acts as a precursor to NAD+, a critical molecule that powers cellular energy production and supports DNA repair. As NAD+ levels decline with age, many turn to NMN and other precursors to help maintain vitality, mental sharpness, and overall health span.
With NMN now approved by FDA the options for US customers is opening up, as new brands are opening up to the US market, we will update this list accordingly.
NMN vs. other NAD+ Precursors: What’s the Difference?
Both NMN and NR lead to increased NAD+ levels in the body, supporting longevity and cellular repair. Some studies show NR is better absorbed and converted more efficiently in human tissues, making it a reliable alternative. Research suggests boosting NAD+ levels may support:
Enhanced energy levels
Improved metabolic function
Better cognitive health
Delayed signs of aging
However, finding high-quality NAD+ boosting supplements in the US can be challenging. Regulatory uncertainty has made NMN difficult to source domestically; some top products have shifted toward NAD+ precursors like NR (Nicotinamide Riboside), which remains available and scientifically robust.
This guide includes both NMN and its trusted precursors to help you confidently choose the best NMN in the US . We review purity, sourcing, delivery formats (capsules, powder, liposomal), and third-party testing to give you a transparent view of what’s worth your investment. The list below reflects this shift; products are evaluated based on effectiveness, purity, and brand transparency.
Table of contents
The 10 Best NMN Supplements in the US
1. The Repair-NMN+ by For Youth (Best Overall)
Supplement Information:
The Repair-NMN+ is a premium NMN supplement, containing over 99% pure NMN in capsule form. Each package contains 13,500 mg total, with 450 mg per capsule, using patented and clinically tested Uthever™ NMN, a raw material trusted by leading supplement brands. This dosage complies with the Singapore HSA’s daily limit of 450 mg, ensuring safety and regulatory compliance for local consumers.
The Repair stands out for its triple-action formula. Alongside NMN, it contains ApiAge® Apigenin and Pterostilbene, which work together to enhance and sustain NAD+ levels more effectively than NMN alone. Apigenin helps preserve NAD+ by inhibiting CD38, the enzyme that breaks it down. Pterostilbene, a highly bioavailable polyphenol, activates sirtuins, which depend on NAD+ for DNA repair, metabolic balance, and cellular protection. These ingredients optimise NAD+ use and support key processes for healthy aging.
Research further supports the effectiveness of this advanced formulation.
A 2023 clinical study published in GeroScience (Yi L. et al.) showed a 38% increase in NAD+ levels and a 50% improvement in physical endurance among NMN users.
Preclinical research published in Diabetes by Harvard Medical School (Escande C. et al., 2013) found that NMN supplementation could help preserve 70% of NAD+.
By combining these complementary mechanisms, The Repair-NMN+ helps restore energy, improve mental clarity, and support cellular health. It is among the most advanced NMN supplements available in the US.
Testing and Manufacturing:
The Repair-NMN+ by For Youth is manufactured in Europe in a GMP-certified facility, following some of the world’s strictest quality standards. Each batch undergoes independent third-party testing to confirm dosage and screen for contaminants, including heavy metals. Full Certificates of Analysis (COAs) are published online for transparency, a critical step in a market where studies show that over 75% of NMN products contain less than their labeled amounts (Sandalova, E., et al., 2024, Geroscience, 46(5), 5075–5083).
For consumers in the US, this level of transparency and quality control provides confidence in both the safety and effectiveness of the supplement.
Pros:
The Repair-NMN+ by For Youth stands out as one of the few NMN supplements that combines NMN with clinically backed ingredients like ApiAge® Apigenin and Pterostilbene, helping to not only boost but also sustain healthy NAD+ levels. Every batch undergoes independent third-party testing, and all Certificates of Analysis (COAs) are published online, giving consumers full transparency and confidence in the product’s quality and purity. Ships free to the US.
2. The Base-NMN by For Youth (Best Value)
Supplement Information:
The Base-NMN is a high-quality NMN supplement in capsule form, made with >99% pure Uthever™ NMN. Each package provides 7,500 mg of NMN in total (250 mg per capsule), ensuring consistent quality and purity. Unlike The Repair, The Base does not include additional NAD+ supporting compounds, making it a simpler, more affordable option for those seeking reliable NMN supplementation.
This supplement is designed for individuals who want to support cellular energy and healthy aging at a lower entry cost. While the dosage per serving is lower compared to some premium options, it still aligns with clinical guidelines and government regulations in Singapore and the US, making it a safe and trustworthy choice.
Testing & Safety:
The Base-NMN by For Youth is produced in Europe in a GMP-certified facility, meeting strict manufacturing standards. Every batch is third-party tested for purity and heavy metals, with results verified and published online, an important assurance in a market where many NMN supplements underdeliver on their claims.
Pros:
The Base-NMN by For Youth is a high-quality NMN supplement that offers the same rigorous manufacturing and testing standards as The Repair-NMN+. Produced in a GMP-certified European facility, each batch undergoes independent third-party testing for purity and heavy metals, with results published online. This transparency ensures consumers can trust the product’s quality and safety, making it a reliable choice for those seeking effective NMN supplementation at an affordable price. Free shipping to the US.
Cons:
The Base-NMN provides a lower NMN dose per capsule (250 mg) compared to premium options like The Repair-NMN+. However, this makes it an ideal starting point for those new to NMN supplementation, offering a safe, affordable, and effective way to begin supporting NAD+ levels and healthy aging before moving on to higher-dose or more complex formulas.
3. Wonderfeel Youngr NMN
Wonderfeel delivers a solid NMN capsule with a high daily dose. It includes additional cofactors like TMG for methylation support; however, the sourcing transparency is limited.
Key Highlights:
High-dose NMN (900mg)
Added methyl donors (TMG, resveratrol)
Third-party tested
4. Renue By Science Fast Dissolve NMNs
Renue's sublingual tablets offer rapid absorption. This form may increase bioavailability, though long-term data is limited. Notable for its convenience, but may contain synthetic carriers.
Key Highlights:
Sublingual NMN delivery
Fast absorption format
Broad third-party testing
Synthetic excipients may be present
5. ProHealth NMN Pro Powder
A bulk NMN option ideal for custom dosages. ProHealth has long been a staple in the longevity space, although its production method and sourcing are not always fully disclosed.
Key Highlights:
100g powder format for flexible dosing
Non-GMO and purity tested
Limited information on fermentation or origin
6. NAD+ Gold Liposomal by Quicksilver Scientific
This liposomal NR product is designed for rapid absorption. It offers a sleek delivery method, but is on the pricier side and lacks full transparency on ingredient origin.
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Key Highlights:
Liposomal technology for enhanced uptake
Contains NR rather than NMN
Minimal sourcing details disclosed
7. AgeMate Daily Longevity Blend
A blend of NMN with supporting adaptogens and antioxidants. Great for all-in-one supplementation, though NMN content per dose is comparatively low.
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Key Highlights:
NMN combined with longevity cofactors
Antioxidant blend included
Suitable for lifestyle support rather than clinical dosing
8. Avea NMN Supplement
Swiss-formulated NMN with liposomal delivery. Avea presents a clean-looking product but doesn’t clarify fermentation origin or show complete third-party test results.
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Key Highlights:
Liposomal NMN delivery
Produced in Switzerland
Lab testing partially available
9. AlphaCell Labs NMN
Available in capsules, this brand promotes high-purity NMN. However, its regulatory positioning is unclear, and little data is provided on actual NAD+ increases.
Key Highlights:
Capsule form
US-manufactured
Gaps in transparency and clinical backing
10. Tru Niagen® NR
The brand that brought NR to market. Respected brand with the standard formulation.
Key Highlights:
Niagen®-based NAD+ booster
Clinically tested
US-manufactured
📖 Quick Comparison: Best NMN Supplements in the US (2025)
Here's an at-a-glance comparison of our top picks for the best 10 NMN supplements in the US:
| Rank | Product | Form | Key Ingredients | Price Range | Special Features |
|---|---|---|---|---|---|
| 1 | For Youth's The Repair | Capsule | NMN + Apigenin + Pterostilbene | $$ | Clinically backed; 99%+ purity; NAD+ longevity support |
| 2 | For Youth's The Base | Capsule | NMN | $$ | Pharmaceutical-grade NMN; naturally fermented |
| 3 | Wonderfeel Youngr | Capsule | NMN + TMG | $$$ | High dose NMN with methylation support |
| 4 | Renue Fast Dissolve | Sublingual | NMN | $$ | Fast absorption; convenient format |
| 5 | ProHealth NMN Pro | Powder | NMN | $$ | Bulk option; flexible dosing |
| 6 | NAD+ Gold | Liposomal | NR | $$$ | Liposomal delivery for enhanced uptake |
| 7 | AgeMate Blend | Capsule | NMN + adaptogens | $$ | All-in-one longevity blend |
| 8 | Avea NMN | Liposomal | NMN | $$$ | Swiss-made; liposomal for absorption |
| 9 | AlphaCell Labs | Capsule | NMN | $$ | US-made; limited transparency |
| 10 | Tru Niagen | Capsule | Niagen® NR | $$ | Established brand; lacks added cofactors |
🔍 NMN Buyer's Guide: What to Look For
✅ Natural vs. Synthetic NMN
Natural NMN (like the kind used in For Youth’s The Base) is closer to the body’s own biochemistry; this supports better bioavailability and cellular absorption. Synthetic NMN, especially when made through chemical synthesis, may have solvent residues and lower stability — a risk not worth taking when purity matters most.
✅ Third-Party Testing Importance
Reputable brands like For Youth provide Certificates of Analysis showing their products contain what's claimed on the label without contaminants. Quality NMN should be third-party tested for heavy metals and purity, GMP-certified manufacturing and free from unnecessary additives. Check out For Youth's third party test results here .
✅ Optimal Dosage Considerations
Most clinical studies suggest at least 250mg of NMN daily for effective NAD+ support. For Youth’s The Base (250mg) are dosed precisely in line with science-backed recommendations — no guesswork, just results.
✅ Top Quality Ingredients
For Youth’s The Repair goes beyond basic NAD+ support with a clinically backed formula that prioritises absorption and performance. Unlike many competitors, it focuses on purity and precision — with no unnecessary additives that may compromise efficacy.
🏆 Final Verdict: Best NMN Supplement in the US
When it comes to cellular repair and longevity , not all NAD+ boosters are created equal. For US consumers in 2025, The Repair by For Youth stands out as the most advanced and trustworthy option.
While other products on our list offer decent NMN support, The Repair provides:
Clinically-Backed Formula : Features Uthever® NMN — a well researched NAD+ precursor supported by multiple human trials. The Repair delivers 450mg of NMN per capsule — a clinically studied dose for NAD+ enhancement.
Enhanced NAD+ Longevity : The Repair promotes sustained NAD+ production throughout the day, with ApiAge® Apigenin and Pterostilbene, supporting optimal energy metabolism, brain function, and cellular vitality without harsh stimulants.
Pharmaceutical-Grade Quality : Formulated in Singapore and produced in GMP-certified EU facilities with rigorous third-party testing for potency, purity, and stability.
Holistic Benefits : The Repair supports a wide range of longevity functions — from energy production to cognitive health, metabolic balance, and DNA repair. All in one minimalist, high-performance formula.
Transparent Company : For Youth shares full ingredient sourcing, clinical references, and clear usage instructions, setting a new standard for supplement transparency in the US.
The Repair offers unmatched purity, natural sourcing, and clinical backing—everything you need to confidently support your long-term health.
Frequently Asked Questions
❓ Is NMN safe for long-term use?
Yes, NMN (Nicotinamide Mononucleotide), a vitamin B3 variant, is generally considered safe for human consumption based on several human trials. NMN is generally free from side effects when used as directed. Rarely, some individuals may experience mild digestive discomfort. If you have any concerns, discontinue use and consult a healthcare provider.
❓Can I buy NMN supplements over the counter in the US?
Yes, there are no restrictions to buying NMN in the US as of September 2025.
NAD+ precursors are available online and does not require a prescription. Ensure you're buying from trusted, transparent brands like For Youth.
❓ How much NMN should I take daily for longevity?
For those looking to support healthy aging, daily doses of NMN (or NR) have shown promise and are well-tolerated in studies—with some safely going up to 1,000 mg. Taking them in the morning may help boost energy and align with natural NAD+ rhythms. While research is still evolving, early results are encouraging, and these supplements offer an exciting potential tool for promoting longevity and vitality—especially when combined with a healthy lifestyle.
❓ What foods are high in NMN?
Foods naturally high in NMN include edamame (soybeans), broccoli, cabbage, cucumbers, avocados, and tomatoes. While these foods can support NAD+ production, the NMN content is relatively low; supplementing with products like The Repair ensures a more therapeutic dose.
❓ When will I notice effects from NMN?
Many users report increased energy, focus, and endurance within 2–4 weeks of daily NMN use. Long-term benefits—like improved metabolic function and healthy aging—often appear after 8–12 weeks. Supplements like The Repair may work faster due to their enhanced NAD+ support ingredients, such as Apigen and L-tryptophan.
❓ What are the benefits of taking NMN supplements?
NMN supplements help boost NAD+ levels, which support cellular energy, DNA repair, cognitive function, and healthy aging. Products like The Repair enhance these benefits with supportive ingredients that prolong NAD+ activity.
❓ Is NMN banned in the US?
As of September 2025, there are no FDA restrictions to purchasing NMN in the US.
Here's the timeline:
In November 2022, the FDA decided that NMN couldn’t be sold as a dietary supplement because it was being studied as a potential pharmaceutical drug. According to U.S. law, if a substance is first researched as a drug in public clinical trials, it can’t also be sold as a supplement. The FDA said this applied to NMN because a company called Metro Biotech was testing a special version of it in drug trials. However, this decision is now being challenged—giving hope that NMN could still be approved as a supplement in the near future.
As of June 2025, there’s renewed optimism for NMN’s future as a dietary supplement in the U.S.; although the FDA moved to restrict it in 2022—arguing that it was first studied as a pharmaceutical drug and thus excluded from supplement status—a federal court granted a stay in 2024 following a legal challenge by the Natural Products Association. This decision allows NMN to remain on the market for now, and the FDA must respond to the NPA’s citizen petition by July 31, 2025; many hope this will lead to a reversal and ensure continued access to NMN for consumers.
