Our NMN Contains 23% More Than Labeled

Introduction

When you’re investing in NMN supplements for your health and longevity, you deserve to know exactly what you’re getting. Not just marketing claims – but verified, third-party tested results.

That’s why we test every single batch of our d’fine NMN supplements at SGS Testing & Control Services, one of Singapore’s most trusted independent laboratories. And the results? They exceed even our own label claims.

Our latest independent testing revealed something remarkable: each pack contains 6,150mg of NMN – that’s 23% more than our labeled 5,000mg. But that’s just the beginning of what these comprehensive lab reports reveal.

In this article, we’ll break down our complete third-party testing results, explain what they mean for you, and show you why independent testing matters more than ever in the supplement industry.

NMN Quality Crisis in Singapore: Why Testing Matters

Before we dive into our results, it’s important to understand the context.

In March 2024, a landmark study published in Singapore made headlines: researchers found that many NMN supplements sold locally failed to meet their label claims. Some products contained significantly less NMN than claimed, while others raised concerns about purity and manufacturing standards.

This isn’t just about getting less value for your money. When it comes to supplements you take daily for long-term health, quality and safety are non-negotiable.

The study highlighted three major issues plaguing the NMN supplement market:

1. Underdosing: Products containing 20-50% less NMN than stated on labels
2. Contamination risks: Potential heavy metals or microbiological contaminants from poor manufacturing
3. Misleading purity claims: Products labeled as “pure NMN” contain unlisted fillers or degraded compounds

This is precisely why we don’t ask you to trust our claims – we prove them with independent, third-party testing on every batch. 

You can read more about why NMN safety matters and what NMN actually is on our knowledge hub.

1. NMN Purity and Potency

The most fundamental question: How much actual NMN is in each capsule?

Using High-Performance Liquid Chromatography (HPLC) – the gold standard for supplement analysis.
The SGS lab measures the exact concentration of β-Nicotinamide Mononucleotide (β-NMN) in our product.

This isn’t an estimate. It’s a precise measurement that tells us exactly how many milligrams of active NMN are in each capsule. 

Learn more about the science behind NMN and how it works in your body.

2. Heavy Metal Screening

Heavy metals can accumulate in supplements during the sourcing of raw materials or manufacturing. Even trace amounts of certain metals can be harmful when consumed daily over time.

We test for four primary heavy metal contaminants:

• Lead (Pb): Affects brain function and development
• Mercury (Hg): Damages the nervous system
• Arsenic (As): Linked to various health issues with long-term exposure
• Cadmium (Cd): Can damage kidneys and bones

Singapore’s Health Sciences Authority (HSA) has established strict limits for these metals in health supplements, and we verify compliance in every batch.

3. Microbiological Safety

Supplements must be free from harmful bacteria and pathogens. Our testing screens for:

• Total Aerobic Plate Count: General bacterial contamination
• Yeast and Mould Count:
  Fungal contamination
• Escherichia coli (E. coli): Indicates fecal contamination
• Salmonella:
  Causes serious food poisoning
• Staphylococcus aureus:
  Can cause various infections
• Pseudomonas aeruginosa: Opportunistic pathogen

All tests adhere to USP 43 standards (United States Pharmacopeia) – the same rigorous standards applied to pharmaceutical products.

Latest Test Results: What the Lab Found

Our most recent batch (tested 2026) underwent the full testing protocol. Here are the complete results:

NMN Purity Results

Laboratory: SGS Testing & Control Services Singapore
Method: In-House HPLC Method (SGS Lab ref. ASH26-0006210-01)

Result: 57.01 g/100g (57.01% NMN concentration)

What This Means for You

Each of our capsules weighs 360mg total. With a 57.01% NMN concentration:

• 57.01% of 360mg = 205mg of pure NMN per capsule
• 205mg × 30 capsules = 6,150mg total NMN per pack

Our label states 5,000mg per pack (30 capsules). You’re actually getting 6,150mg – that’s 23% more than labeled.

Calculation breakdown:

• 6,150mg ÷ 5,000mg = 1.23
• 1.23 – 1.00 = 0.23 (or 23% more)

This isn’t a one-time anomaly. Our previous batch (tested in May 2024, SGS Report No. 10582677) showed a concentration of 54.73%, delivering 197mg per capsule (5,919mg per pack, or 18% more than the labeled amount). This consistency proves our commitment to quality isn’t just talk – it’s verified batch after batch.

Heavy Metal Results

All heavy metals tested below detectable limits or well within safe ranges:

Heavy Metal	Our Result	HSA Safety Limit	Status
Lead (Pb)	ND (Not Detected)	< 10 mg/kg	✓ Pass (below detection)
Mercury (Hg)	ND (Not Detected)	< 0.5 mg/kg	✓ Pass (below detection)
Cadmium (Cd)	ND (Not Detected)	< 0.3 mg/kg	✓ Pass (below detection)
Arsenic (As)	Below detection	< 5 mg/kg	✓ Pass

ND = Not Detected (levels below the laboratory’s detection threshold)

What this means: Not only did our NMN pass safety standards – lead, mercury, and cadmium weren’t even detectable. This indicates exceptional purity in both our raw materials and manufacturing process.

Microbiological Safety Results

All microbial tests passed with exceptional margins:

Test	Our Result	USP 43 Standard	Status
Total Aerobic Plate Count	< 10 cfu/g	< 100,000 cfu/g	✓ Pass (10,000× safer)
Yeast & Mould Count	< 10 cfu/g	< 500 cfu/g	✓ Pass  (50× safer)
E. coli	Absent	Must be Absent	✓ Pass
Salmonella spp	Absent	Must be Absent	✓ Pass
Staphylococcus aureus	Absent	Must be Absent	✓ Pass
Pseudomonas aeruginosa	Absent	Must be Absent	✓ Pass

cfu/g = colony-forming units per gram

What this means: Our NMN is essentially free from bacterial and fungal contamination. The aerobic plate count of <10 is 10,000 times lower than the allowed limit – indicating exceptionally clean manufacturing conditions in our Japanese GMP-certified facilities.

Why We Exceed Our Label Claims (And Why That’s Good News)

You might wonder: If the product contains more NMN than labeled, why not just update the label?

Here’s the reality of supplement manufacturing that most brands won’t tell you:

Natural Variation in Raw Materials

NMN is a biological compound. Even with pharmaceutical-grade manufacturing:

• Raw material batches can vary in purity (typically 95-99%)
• Storage conditions can affect potency over time
• Manufacturing processes introduce small variations

Our Conservative Formulation Strategy

Rather than label our product at the theoretical maximum and risk falling short, we:

1. Formulate for consistency: We aim for 167mg per capsule (5,000mg per pack)
2. Source high-purity NMN: Our Japanese supplier delivers 95%+ purity raw material
3. Over-fill deliberately: We add extra to account for any degradation during the 2-year shelf life
4. Verify every batch: Third-party testing confirms what’s actually in each pack

The result? You always get at least what we promise – and often significantly more.

Our tested batches have shown:

• Latest Batch (2025): 205mg per capsule, 6,150mg per pack (23% over label)
• Previous Batch (May 2024): 197mg per capsule, 5,919mg per pack (18% over label)

This isn’t marketing spin. It’s our commitment to quality over cutting costs. See our complete Quality & Safety documentation for all test certificates.

The Math Behind the 23% Claim

Latest Batch Test Results:

• Total capsule weight: 360mg
• NMN concentration: 57.01% (from HPLC test)
• Number of capsules per pack: 30

Actual NMN Content:

1. 360mg × 57.01% = 205.2mg of NMN per capsule
2. 205.2mg × 30 capsules = 6,156mg total per pack

Label Claim:

• States 5,000mg per pack (30 capsules)
• Theoretical content: 166.7mg per capsule

The Difference:

You get 23.1% more NMN than labeled

6,156mg ÷ 5,000mg = 1.231

The remaining 43% of each capsule consists of:

• HPMC (vegetarian capsule shell)
• Minor excipients for stability
• No fillers, binders, or undisclosed ingredients

Consistency Across Batches:

Our previous batch (May 2024) showed similar over-delivery:

• NMN concentration: 54.73%
• Actual content: 197mg per capsule (5,919mg per pack)
• Over-delivery: 18.4% more than labeled

This 4-5% variation between batches is normal in supplement manufacturing and proves we formulate conservatively to ensure you always get at least what we promise.

How Our Testing Compares to Industry Standards

Most supplement brands follow one of three approaches:

Approach 1: No Third-Party Testing (Common)

• Rely on supplier certificates only
• Test only during product development, not per batch
• No verification of the finished product

Approach 2: Selective Testing (Moderate)

• Test randomly selected batches
• Test only for certain parameters (e.g., only purity, not heavy metals)
• May use in-house labs rather than independent facilities

Approach 3: Comprehensive Testing (Rare)

• Test every batch ✓ (What we do)
• Independent third-party lab ✓ (What we do)
• Full spectrum testing ✓ (What we do)
• Published results ✓ (What we do)

According to the 2024 Singapore study, many NMN products on the market fall into category 1 or 2. We’re committed to the category

Why We Choose SGS Testing Services

SGS is one of the world’s leading inspection, verification, testing, and certification companies. Founded in 1878, SGS operates in over 140 countries and is recognized as the global benchmark for quality and integrity.

Why SGS Singapore?

1. ISO 17025 Accredited: Their testing methods meet international standards
2. HSA-Recognized: Singapore’s Health Sciences Authority accepts their results for regulatory compliance
3. Independent & Unbiased: As a third party, they have no incentive to inflate results
4. Traceable Results: Each report includes unique reference numbers and is legally binding
5. Pharmaceutical-Grade Standards: They use the same protocols for supplements as for medications

Our test report reference numbers:

• Latest batch: 10582677(1)
• NMN analysis: ASH24-0031183-01

What This Testing Means for Your Health

Beyond the technical numbers, here’s what these results mean in practical terms:

1. You’re Getting Real NMN

With independent HPLC verification, you can trust that the β-NMN in our capsules is genuine, bioactive, and at the concentration we claim.

2. You’re Safe from Contaminants

Zero detection of mercury and extremely low levels of other heavy metals mean you can take this supplement daily without accumulating toxic metals in your system.

3. You’re Protected from Pathogens

The absence of harmful bacteria means the product is safe for consumption, even for those with sensitive immune systems.

4. You’re Getting More Value

With 18-23% more NMN than labeled (depending on batch), you’re getting better value per milligram than other sellers – even if our price appears similar.

5. You Can Trust the Manufacturing

These results don’t happen by accident. They reflect:

• High-quality raw materials from Japan
• GMP-certified manufacturing facilities
• Strict quality control procedures
• Proper storage and handling throughout the supply chain

Red Flags: What to Look for When Buying NMN

Not all NMN supplements are created equal. Based on our experience and industry knowledge, here are warning signs to watch for:

Questions We’re Often Asked About Our Testing

How often do you test?

Every single batch that we import from Japan undergoes the full testing protocol before being made available for sale. No exceptions.

Can I see the actual test reports?

Yes. We publish our test certificates on our Quality & Safety page. Each report includes:

• SGS reference number
• Test date and sample receipt date
• Detailed methodology
• Complete results for all parameters
• Technical manager’s signature

Why does NMN purity vary between batches?

NMN is a biological compound extracted and synthesized from precursor materials. Natural variation of ±5% is expected, even with pharmaceutical-grade manufacturing. This is why we formulate conservatively and test every batch.

Is a 54-57% NMN concentration normal?

Yes. The percentage refers to the concentration of pure NMN within the capsule’s total weight. The remaining weight consists of the HPMC capsule shell and minor stabilizing excipients. This is standard across the industry – the key is that our total NMN per capsule (197-205mg) exceeds label claims.

What do you do if a batch fails testing?

In the unlikely event a batch doesn’t meet our standards or HSA safety limits, it would not be released for sale. We would work with our Japanese manufacturer to identify the cause and ensure corrective action. To date, all our batches have passed with significant safety margins.

Do you test for other contaminants?

Our current protocol focuses on the most critical safety parameters:
NMN purity, heavy metals (4 types), and microbiological safety (6 types). These are the tests required by HSA and recommended by international supplement safety standards.

How do I know the test reports are legitimate?

Each SGS report includes:

• Unique report number
• SGS company registration and GST numbers
• Technical manager’s signature
• Official SGS letterhead and watermarks
• Disclaimer and legal text

You can contact SGS Singapore directly to verify any report number if you wish.

For more answers to common questions, visit our FAQ page.

The Cost of Quality: Why We Invest in Testing

Third-party testing isn’t cheap. A comprehensive test like ours costs approximately SGD $800-1,200 per batch, covering:

• HPLC analysis for NMN purity
• ICP-MS analysis for heavy metals
• Microbiological culture testing
• Lab technician time
• Report generation and certification

For a small supplement brand, this represents a significant percentage of each batch’s cost. Many competitors skip this expense entirely or test only sporadically.

We believe it’s worth every dollar.

Here’s why: You’re taking NMN to support your long-term health and cellular function. If you’re committed to taking it daily for months or years, don’t you deserve to know – with certainty – that it’s pure, safe, and accurately labeled?

We think you do. That’s why testing isn’t optional for us – it’s foundational.

Our two tested batches prove the consistency of our quality:

• Latest batch: 6,150mg per pack (23% more)
• Previous batch: 5,919mg per pack (18% more)

Both significantly exceed our 5,000mg label claim. This isn’t luck – it’s our deliberate commitment to over-delivering on quality.

Our Commitment to Transparency

Transparency in the supplement industry is rare. Most brands treat their testing data (if it exists) as proprietary information.

We take the opposite approach.

We publish our test results because:

1. You have a right to know what you’re putting in your body
2. We want to raise industry standards by showing what’s possible
3. We have nothing to hide – our results speak for themselves
4. Trust must be earned through evidence, not marketing claims

You’ll find our complete test certificates, batch numbers, and testing dates on our website. No account required. No email signup wall. Just free access to the data you need to make an informed decision.

What Makes Japan-Made NMN Different

Our NMN is manufactured in Japan at facilities certified under Good Manufacturing Practice (GMP) standards. While this adds to our costs, it provides quality assurance that’s difficult to match:

Japanese Pharmaceutical Heritage

Japan has some of the world’s strictest pharmaceutical manufacturing standards, developed over decades of producing medications for a health-conscious population.

Quality-First Culture

Japanese manufacturers typically prioritize quality over cost-cutting, viewing their reputation as more valuable than short-term profits.

Advanced Manufacturing Technology

Japanese facilities often use more advanced synthesis and purification methods, resulting in higher-purity raw materials and more consistent batch quality.

Regulatory Oversight

Japan’s Ministry of Health, Labour and Welfare maintains strict oversight of supplement manufacturing, creating a regulatory environment closer to pharmaceutical standards.

This is why we chose a Japanese supplier despite the higher costs. The consistency and purity in our test results validate this decision.

The Future of NMN Quality Standards

The 2024 Singapore study was a wake-up call for the industry. We expect to see:

Stricter Regulations

Singapore’s HSA and other regulatory bodies may implement mandatory third-party testing requirements for NMN and similar supplements.

Consumer Demand for Verification

As awareness grows, consumers will increasingly demand proof – not just claims from supplement brands.

Industry Self-Regulation

Responsible brands may adopt voluntary testing standards to differentiate themselves from low-quality competitors.

We’re already ahead of this curve. Whether regulations change or not, our testing protocol remains the same: comprehensive, independent, and transparent.

How to Verify Your NMN Supplement Quality

If you’re buying NMN supplements from another brand, here’s how to evaluate their quality claims:

1. Ask for Test Reports

Request batch-specific third-party test reports. If they can’t provide them, that’s your answer.

2. Verify the Testing Lab

Check that the lab is:

• Independent (not owned by the brand or manufacturer)
• Accredited (ISO 17025 or equivalent)
• Recognized by health authorities

3. Check the Test Date

The report should be recent and match the batch you’re purchasing. A 2-year-old test report doesn’t tell you what’s in today’s product.

4. Confirm What Was Tested

Look for:

• HPLC or a similar method for NMN quantification
• Heavy metal screening (at minimum: lead, mercury, arsenic, cadmium)
• Microbiological testing for pathogens

5. Read the Fine Print

Check that the test was performed on the finished product, not just raw materials. Supplier certificates aren’t the same as finished product testing.

Conclusion: Quality You Can Verify

In an industry where bold claims are common and verification is rare, we choose to let independent laboratory data speak for itself.

Our latest SGS test results confirm:

✓ 57.01% NMN concentration (verified by HPLC)
✓ 205mg of pure NMN per capsule (23% more than labeled)
✓ Zero detectable lead, mercury, and cadmium
✓ No harmful bacteria or pathogens detected
✓ 10,000× lower bacterial count than allowed limits

These aren’t marketing claims. They’re verifiable facts from an independent, internationally recognized laboratory.

When you choose our NMN supplement, you’re not just taking our word for it – you’re trusting the same testing standards used for pharmaceutical products, conducted by a globally respected certification body, with results you can download and verify yourself.

That’s the difference between a claim and a commitment.

Take the Next Step

Ready to experience NMN you can trust?

→ View Our Complete Test Reports
Download SGS certificates for all tested batches

→ Shop NMN Supplements
Japan-made, third-party tested, exceeding label claims

→ Learn About NMN Science
Understand how NMN supports NAD+ levels and cellular health

→ Read Our FAQ
Common questions about dosage, safety, and usage

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