Untitled

[njlabs]

[njlabs]

Why Residual Solvent Testing Is a Big Deal in Pharmaceutical Manufacturing

When most people think about drug safety, their minds go to clinical trials, dosage accuracy, or contamination during storage. Very few think about what happens during the manufacturing process itself specifically, the solvents used to synthesize active pharmaceutical ingredients (APIs) and whether traces of those solvents end up in the final product.

That's exactly what residual solvent testing is designed to catch. And in recent years, with the FDA tightening its oversight of pharmaceutical quality control, this type of testing has moved from a nice-to-have to an absolute requirement for any responsible drug manufacturer.

What Are Residual Solvents and Why Are They a Problem?

Solvents are used at nearly every stage of pharmaceutical production. They dissolve compounds, facilitate chemical reactions, aid in crystallization, and help with purification. Common examples include ethanol, acetone, methylene chloride, and benzene each serving a specific purpose in synthesis.

The problem? Even with the best manufacturing practices, it's nearly impossible to remove 100% of these solvents from the final drug product. Small amounts sometimes just parts per million can remain trapped within the drug matrix. These are called residual solvents, and depending on which solvent we're talking about, the health implications can range from negligible to seriously dangerous.

The International Conference on Harmonization (ICH) has established a widely recognized classification system that groups residual solvents into three categories:

Class 1 solvents are known or suspected human carcinogens and should be avoided entirely in pharmaceutical manufacturing wherever possible. Benzene and carbon tetrachloride fall into this category.

Class 2 solvents aren't carcinogenic but can still cause harm if exposure exceeds the acceptable daily intake. These include chemicals like acetonitrile, methanol, and toluene.

Class 3 solvents pose the lowest risk and are generally regarded as safe at low concentrations. Ethanol, acetone, and ethyl acetate are typical examples.

Regulatory bodies like the FDA, EMA, and pharmacopeia’s worldwide including the United States Pharmacopeia (USP) have adopted these classifications to establish testing requirements and safety thresholds.

Enter Headspace Gas Chromatography

So how do labs detect these residual solvents? The gold standard method is Gas Chromatography Headspace analysis, commonly referred to as GC-HS.

The principle behind headspace analysis is clever and practical. Rather than introducing the entire pharmaceutical sample directly into the chromatograph which can cause complications, especially with heat-sensitive compounds the sample is placed in a sealed vial and heated to a specific temperature. The volatile compounds within the sample evaporate into the space above it (the "headspace"), and that vapor is what gets injected into the gas chromatograph for analysis.

This indirect approach has several important advantages. First, it preserves the integrity of the sample. Many volatile compounds including fragrance ingredients, flavour compounds, essential oils, and certain pharmaceuticals can degrade or change chemically when exposed to direct heat or the analytical column itself. By sampling only the vapor phase, the technique avoids those problems entirely.

Second, it's highly selective. Gas chromatography separates compounds based on their volatility and interaction with the column material, which means even a complex mixture of solvents can be individually identified and quantified. For regulatory compliance purposes, this ability to distinguish between specific solvents is essential knowing that "some solvent is present" isn't good enough; you need to know which one and how much.

Third, headspace GC is well-suited for a wide range of sample types from solid drug formulations to liquids, polymers, and even packaging materials that may off-gas volatile compounds over time.

USP <467>: The Testing Standard You Need to Know

In the United States, residual solvent testing in pharmaceutical products is governed primarily by USP Chapter <467>, which outlines procedures for detecting organic volatile impurities. Compliance with this standard is expected for any drug product submitted to the FDA, and manufacturers who skip or poorly execute this testing risk costly recalls, regulatory warnings, or worse.

USP <467> requires the use of validated methods with appropriate limits of detection for each solvent class. This is where having the right instrumentation and expertise makes all the difference. The method isn't just about running a sample through a machine it requires careful selection of operating parameters, validated reference standards, appropriate headspace equilibration times, and scientifically justified reporting limits.

Not All Labs Are Equipped for This

Here's something that often surprises drug developers and contract manufacturers: not every laboratory that offers "residual solvent testing" can handle the full scope of analysis that modern pharmaceutical products demand.

Some formulations include complex excipients like poloxamers polymeric compounds used to improve drug solubility and delivery which present significant analytical challenges during residual solvent testing. These materials can interfere with standard headspace protocols if the lab isn't experienced in handling them.

New Jersey Laboratories (NJ Labs) is one of the few contract testing laboratories equipped with state-of-the-art GC-HS instrumentation and the scientific expertise to tackle even these more demanding analyses. Their team has extensive hands-on experience with USP <467> and can guide clients through every aspect of the testing process from method selection to data interpretation and regulatory documentation.

For pharmaceutical companies navigating the increasingly complex landscape of quality control requirements, partnering with a lab that has this depth of experience isn't just convenient it can be the difference between a smooth product approval and a costly delay.

The Broader Application of Headspace Analysis

While the pharmaceutical industry is arguably the biggest driver of demand for GC-HS testing, it's worth noting that headspace analysis has broad utility across other industries too. Food and beverage manufacturers use it to monitor flavour compounds and detect off-Flavors caused by packaging migration. Cosmetic and fragrance companies rely on it to verify the composition of essential oils and fragrance blends. Polymer and plastics manufacturers use it to assess off-gassing potential and product safety.

In each of these applications, the underlying principle is the same: get reliable, quantitative data on volatile compounds without compromising the sample or the accuracy of the result.

Final Thoughts

Residual solvent testing isn't glamorous, but it's one of those behind-the-scenes functions that keeps pharmaceutical products safe for the people who depend on them. As regulatory scrutiny increases and quality standards rise, labs that can deliver accurate, reproducible GC-HS results will continue to be indispensable partners for drug manufacturers.

Whether you're developing a new API, reformulating an existing product, or simply working to maintain compliance with USP <467>, understanding the role of headspace gas chromatography is a practical necessity not just an academic exercise.

[njlabs]

https://njlabs.com/instrumentation/gas-chromatography-headspace-gc-hs-analysis/

[njlabs]

USP 51 Antimicrobial Effectiveness Testing and Its Role in Product Safety

Pharmaceutical and cosmetic products are expected to remain safe and stable throughout their shelf life. Products such as creams, lotions, oral liquids, eye drops, and topical formulations are often exposed to environmental conditions during manufacturing, storage, and consumer use. Without an effective preservative system, these products can become vulnerable to microbial contamination.

USP 51 antimicrobial effectiveness testing, also known as preservative efficacy testing, helps manufacturers verify that their preservative systems can control the growth of bacteria, yeast, and mold over time. This testing has become an essential part of regulatory compliance and product quality assurance for pharmaceutical, cosmetic, and personal care manufacturers.

What Is USP 51 Antimicrobial Effectiveness Testing?

USP 51 antimicrobial effectiveness testing is a microbiological challenge study designed to evaluate whether preservatives within a formulation can effectively prevent microbial growth during the product’s intended shelf life.

The test is commonly required for non-sterile products that may be repeatedly exposed to contamination during normal handling and use. Many formulations contain water and nutrients that can support microbial growth if preservatives are not functioning properly.

The purpose of USP 51 testing is to confirm that the preservative system can:

Control microbial contamination

Maintain product integrity and stability

Protect consumer safety

Meet USP compendial acceptance criteria

Why Preservative Efficacy Testing Is Important

Preservatives are added to pharmaceutical and cosmetic products to inhibit microbial growth, but their performance can vary depending on the formulation. Factors such as pH, ingredient compatibility, preservative concentration, and product composition can all impact antimicrobial effectiveness.

Without proper preservative efficacy testing, manufacturers may not know whether their preservative system will perform reliably in real-world conditions.

USP 51 testing helps manufacturers:

Validate preservative performance within the actual formulation

Reduce contamination risks during storage and use

Support regulatory submissions and compliance requirements

Improve product quality and consumer safety

Support formulation development and reformulation studies

How USP 51 Testing Is Performed

USP 51 antimicrobial effectiveness testing follows a standardized microbiological protocol outlined in the United States Pharmacopeia.

Step 1 – Product Inoculation

The product sample is inoculated with specific challenge microorganisms at controlled concentrations. These organisms represent common contamination risks found in pharmaceutical and cosmetic manufacturing environments.

Step 2 – Controlled Incubation

After inoculation, the samples are stored under controlled environmental conditions. Microbial counts are evaluated at specific intervals throughout the study.

Typical testing intervals include:

Day 0

Day 2

Day 7

Day 14

Day 28

Step 3 – Microbial Reduction Analysis

The microbial populations are measured using validated plate count methods. The results are compared against USP 51 acceptance criteria to determine whether the preservative system meets the required antimicrobial performance standards.

Challenge Organisms Used in USP 51 Testing

USP 51 testing uses five standardized microorganisms to evaluate preservative efficacy against different contamination risks.

Staphylococcus aureus

A gram-positive bacterium commonly associated with skin infections and contamination risks in topical products.

Escherichia coli

A gram-negative bacterium often linked to water-based contamination.

Pseudomonas aeruginosa

A microorganism known for surviving in moist environments and frequently associated with healthcare-related contamination.

Candida albicans

A yeast species commonly evaluated in both pharmaceutical and cosmetic formulations.

Aspergillus Brasiliense’s

A mold species used to assess fungal resistance within formulations.

USP 51 Product Categories

USP 51 divides products into different categories based on their route of administration and contamination risk.

Category 1 – Parenteral and Ophthalmic Products

These products require the highest level of antimicrobial protection due to increased patient safety risks.

Examples include:

Injectable drug products

Ophthalmic solutions

Eye drops

Category 2 – Topical Products

This category includes non-sterile topical products applied to the skin or mucosal surfaces.

Examples include:

Creams

Lotions

Ointments

Nasal sprays

Category 3 – Oral Products

Oral aqueous formulations must remain protected from microbial growth during storage and use.

Examples include:

Oral suspensions

Oral solutions

Liquid dietary supplements

Category 4 – Antacid Products

Antacid formulations often have unique preservative limitations because of their pH characteristics, making preservative efficacy testing especially important.

The Importance of Method Suitability Testing

Method suitability testing is a critical part of USP 51 antimicrobial effectiveness studies. Certain preservatives or product ingredients can interfere with microbial recovery during laboratory analysis.

If microorganisms cannot be recovered accurately, the results may incorrectly suggest that the preservative system is more effective than it is.

Method suitability testing helps ensure:

Accurate microbial recovery

Reliable challenge study results

Proper neutralization of preservative interference

Scientifically valid antimicrobial evaluations

Applications of USP 51 Testing

USP 51 antimicrobial effectiveness testing is widely used across multiple industries.

Pharmaceutical Applications

Multi-dose formulations

Oral liquid medications

Topical drug products

Ophthalmic preparations

NDA and ANDA submission support

Cosmetic and Personal Care Applications

Moisturizers and lotions

Hair care products

Skin care formulations

Colour cosmetics

Research and Development Applications

Manufacturers also use USP 51 testing during formulation development to compare preservative concentrations and optimize preservative systems before commercialization.

Choosing the Right Testing Laboratory

Selecting a qualified microbiology laboratory is essential for obtaining reliable and reproducible results. Manufacturers should work with laboratories that maintain validated procedures, accredited quality systems, and experienced microbiology teams.

An experienced testing laboratory can help manufacturers:

Interpret USP acceptance criteria

Support regulatory submissions

Identify preservative system limitations

Optimize formulation performance

Ensure accurate and defensible microbiological data

NJ Labs USP 51 Testing Services

NJ Labs provides USP 51 antimicrobial effectiveness testing services for pharmaceutical, cosmetic, and personal care manufacturers. The laboratory supports preservative challenge studies, method suitability testing, and preservative system evaluations using validated microbiological methods.

As an ISO/IEC 17025:2017 accredited laboratory with FDA and DEA registrations, NJ Labs helps manufacturers generate reliable microbiological data suitable for regulatory compliance and product quality programs.

The laboratory also supports preservative concentration studies during formulation development, helping companies identify effective preservative levels while minimizing the risk of late-stage reformulation issues.

Conclusion

USP 51 antimicrobial effectiveness testing plays an important role in ensuring the microbiological safety and stability of pharmaceutical and cosmetic products. Effective preservative systems help protect consumers, maintain product integrity, and support regulatory compliance throughout the product lifecycle.

As regulatory expectations continue to increase, preservative efficacy testing remains a critical requirement for manufacturers developing non-sterile formulations. Investing in validated USP 51 testing can help companies reduce contamination risks, improve formulation performance, and strengthen confidence in product quality before commercial release.

[njlabs]

https://njlabs.com/our-services/usp-51-antimicrobial-effectiveness-testing/

[njlabs]

Why Third-Party Dietary Supplement Testing Matters More Than Ever           

The dietary supplement and nutraceutical industry has experienced tremendous growth in recent years. Consumers are increasingly investing in vitamins, herbal extracts, sports nutrition products, probiotics, and wellness supplements to support healthier lifestyles. However, with rising demand comes increased responsibility for manufacturers to ensure every product meets strict quality, purity, and safety standards.

Today’s consumers are more informed than ever. They read labels carefully, research ingredients online, and expect transparency from supplement brands. A single quality issue can damage brand reputation, trigger regulatory concerns, and reduce customer trust. This is why third-party dietary supplement testing has become a critical part of the nutraceutical manufacturing process.

Independent testing laboratories help manufacturers confirm product quality through scientific analysis and validated testing procedures. From raw material verification to finished product testing, these laboratories provide the documentation and analytical accuracy needed to support compliance and consumer confidence.

The Importance of Reliable Supplement Testing

Unlike traditional pharmaceutical products, dietary supplements often contain complex ingredient combinations including botanical extracts, amino acids, vitamins, minerals, enzymes, and specialty nutrients. These ingredients can vary significantly in composition and stability, making accurate testing more challenging.

Manufacturers must verify that supplements contain the correct ingredients at the right potency levels while remaining free from contaminants such as heavy metals, microbes, residual solvents, and adulterants. Without proper testing protocols, quality problems can go unnoticed until products reach the market.

This is where experienced laboratories like NJ Labs play an important role in supporting supplement manufacturers with comprehensive analytical testing services. As an ISO/IEC 17025:2017 accredited and FDA-inspected laboratory, NJ Labs helps nutraceutical brands ensure their products meet both regulatory and quality expectations.

Common Quality Concerns in Dietary Supplements

Quality failures in dietary supplements can occur at multiple stages of production. Some of the most common issues include:

Heavy metal contamination

Incorrect potency levels

Microbial contamination

Ingredient misidentification

Product instability over time

Cross-contamination during manufacturing

Inconsistent raw material quality

To reduce these risks, manufacturers rely on third-party testing laboratories to independently verify product integrity before products are distributed to consumers.

What Does Third-Party Supplement Testing Include?

Comprehensive nutraceutical testing involves several analytical procedures designed to evaluate different aspects of product quality.

Raw Material Qualification

Testing begins with raw material verification. Laboratories confirm ingredient identity, purity, and consistency before manufacturing starts. This step helps manufacturers detect contamination or supplier inconsistencies early in the process.

Potency and Label Claim Verification

Potency testing ensures that supplements contain the active ingredients listed on the product label in the correct amounts. Accurate potency verification is especially important for vitamins, amino acids, herbal extracts, and performance supplements.

Heavy Metals Analysis

Heavy metals such as arsenic, mercury, cadmium, and lead are among the most heavily regulated contaminants in dietary supplements. Advanced analytical techniques like ICP-MS allow laboratories to detect trace levels of these substances with high accuracy.

Microbial Testing

Microbial contamination remains one of the leading causes of supplement recalls. Testing for organisms such as Salmonella, E. coli, yeast, Mold, and Staphylococcus aureus helps manufacturers confirm microbiological safety and compliance.

Stability Studies

Stability testing evaluates how a product performs over time under different environmental conditions. These studies help determine shelf life, storage recommendations, packaging compatibility, and long-term ingredient stability.

Why ISO Accreditation Matters

When choosing a supplement testing laboratory, accreditation is one of the most important factors to consider. ISO/IEC 17025 accreditation demonstrates that a laboratory follows internationally recognized standards for technical competence, method validation, quality assurance, and data reliability.

Working with an accredited laboratory provides several advantages:

Reliable and reproducible results

Regulatory-ready documentation

Improved audit preparedness

Increased retailer confidence

Better consumer trust

Laboratories with FDA inspection status and validated testing protocols provide additional assurance that testing data can withstand regulatory scrutiny.

Advanced Instrumentation Improves Testing Accuracy

Modern dietary supplements require highly sophisticated analytical techniques due to their complex ingredient profiles. State-of-the-art instrumentation allows laboratories to generate more precise and reproducible data.

Leading laboratories use technologies such as:

ICP-MS for trace element analysis

HPLC and UPLC for potency testing

LC-MS for contaminant detection

GC-MS for residual solvent analysis

HPTLC for botanical identification

FTIR and UV-Vis for purity assessment

NJ Labs utilizes a broad range of advanced analytical instrumentation to support comprehensive dietary supplement and nutraceutical testing. Their ability to handle complex, multi-ingredient formulations without outsourcing analysis helps manufacturers maintain efficiency and consistency throughout the testing process.

Consumer Trust Depends on Product Transparency

In today’s competitive supplement market, transparency has become a major factor influencing purchasing decisions. Consumers want confidence that the products they buy are safe, accurately labelled, and independently tested.

Third-party laboratory testing supports:

Label claim verification

Ingredient transparency

Retail compliance requirements

Product safety validation

Brand credibility

Manufacturers that prioritize quality assurance are better positioned to build long-term customer loyalty and strengthen their market reputation.

The Value of Preparatory Testing

One of the biggest challenges in nutraceutical analysis is selecting the right testing method for a specific formulation. Standard pharmaceutical testing methods may not always work effectively for supplements containing complex botanical blends or specialty ingredients.

Preparatory testing helps laboratories determine the most appropriate analytical approach before routine testing begins. This process improves method compatibility, result reproducibility, and overall testing reliability.

By validating testing procedures early, manufacturers can reduce analytical variability and ensure more defensible data throughout ongoing production.

Final Thoughts

As the nutraceutical industry continues to grow, manufacturers face increasing pressure to deliver safe, high-quality, and compliant products. Third-party dietary supplement testing plays a vital role in ensuring ingredient integrity, regulatory compliance, and consumer confidence.

From microbial testing and potency verification to heavy metals analysis and stability studies, comprehensive analytical testing helps manufacturers identify risks before products reach the market.

Partnering with an experienced and accredited laboratory allows supplement brands to strengthen quality control programs, support compliance efforts, and build stronger trust with consumers in an increasingly competitive marketplace.

[njlabs]

Why Chemical Testing Services Are Essential for Modern Manufacturing Industries

In today’s highly regulated and quality-driven manufacturing environment, chemical testing has become one of the most critical processes for ensuring product consistency, safety, and compliance. Whether manufacturers produce specialty chemicals, industrial compounds, coatings, cleaning solutions, polymers, or intermediates, maintaining strict quality standards is no longer optional. Accurate chemical testing and analysis help companies verify raw materials, monitor production quality, identify contaminants, and meet both domestic and international regulatory requirements.

As industries continue to evolve with advanced formulations and tighter compliance expectations, the demand for reliable chemical testing laboratories is increasing rapidly. Manufacturers now require dependable analytical support that not only delivers accurate data but also helps improve process efficiency and product performance.

The Growing Importance of Chemical Testing in Manufacturing

Chemical manufacturing involves complex formulations, sensitive raw materials, and strict production specifications. Even minor inconsistencies in composition or contamination can affect product performance, shelf life, customer safety, and regulatory approval.

This is where professional chemical testing services play a major role. By conducting detailed analytical evaluations, manufacturers can ensure that every batch meets predefined standards before products reach the market.

Chemical testing helps manufacturers:

Verify raw material identity and purity

Detect impurities and contaminants

Ensure batch-to-batch consistency

Validate product formulations

Support regulatory compliance

Improve product quality and reliability

Reduce production risks and recalls

Without proper testing and quality assurance protocols, manufacturers may face costly product failures, compliance issues, or operational disruptions.

Raw Material Testing: The Foundation of Quality Control

The quality of any finished chemical product depends heavily on the quality of its raw materials. Manufacturers must ensure that incoming materials meet strict purity and composition specifications before they are introduced into the production process.

Raw material testing helps identify contamination, incorrect composition, residual solvents, and supplier inconsistencies. This process is essential for maintaining stable production quality and preventing downstream manufacturing problems.

Advanced analytical techniques such as HPLC, GC-MS, FTIR, and ICP-MS are widely used to evaluate raw materials with high precision. These methods provide manufacturers with accurate data that supports supplier qualification and quality assurance programs.

Finished Product Analysis and Performance Evaluation

Once production is complete, finished product testing becomes equally important. Manufacturers need to confirm that the final formulation meets all required specifications for identity, potency, physical properties, and stability.

Finished product analysis typically includes:

Quantitative chemical assays

Impurity profiling

Physical characterization

Stability testing

Shelf-life evaluation

Batch release testing

These analytical procedures help manufacturers maintain product integrity while ensuring customer satisfaction and regulatory acceptance.

A trusted laboratory partner can significantly improve the efficiency of this process by providing reliable analytical data and detailed documentation.

Contaminant and Impurity Analysis in Chemical Manufacturing

One of the biggest challenges in chemical manufacturing is the presence of trace contaminants and unwanted impurities. Even low levels of contamination can compromise product quality, affect performance, or create compliance risks.

Modern chemical testing laboratories use advanced instrumentation to detect both organic and inorganic impurities at extremely low concentrations. Technologies such as ICP-MS, ICP-OES, GC-FID, and GC-MS are commonly used for trace element analysis and residual solvent detection.

Contaminant analysis is especially important for industries dealing with:

Specialty chemicals

API intermediates

Industrial formulations

Cleaning chemicals

Adhesives and coatings

Performance chemicals

Routine impurity analysis allows manufacturers to maintain strict process control while improving operational consistency.

Stability Studies and Shelf-Life Assessment

Stability testing has become an essential requirement for many chemical products. Environmental conditions such as temperature, humidity, and light exposure can impact product stability over time.

Accelerated and long-term stability studies help manufacturers determine appropriate storage conditions and establish accurate expiration dates. These studies also provide valuable insights into formulation performance and packaging compatibility.

Reliable stability data supports regulatory submissions and helps manufacturers maintain product quality throughout the distribution lifecycle.

The Role of Advanced Analytical Instrumentation

Modern chemical testing facilities rely on sophisticated analytical technologies to deliver accurate and reproducible results. Some of the most widely used techniques include:

High-Performance Liquid Chromatography (HPLC)

Gas Chromatography (GC)

Inductively Coupled Plasma Mass Spectrometry (ICP-MS)

Fourier Transform Infrared Spectroscopy (FTIR)

UV-Visible Spectroscopy

Thermal analysis methods such as DSC and TGA

These technologies enable laboratories to perform highly sensitive chemical analysis across a wide range of materials and formulations.

Why Manufacturers Choose NJ Labs for Chemical Testing

When it comes to reliable chemical testing and analysis, manufacturers need a laboratory partner they can trust. NJ Labs provides comprehensive analytical and regulatory testing solutions designed to support chemical manufacturers at every stage of production.

Operating under cGMP and FDA-compliant quality systems, NJ Labs offers testing services for raw materials, intermediates, finished products, and custom formulations. Their team combines scientific expertise with advanced instrumentation to deliver accurate, reproducible, and compliance-focused analytical results.

From impurity analysis and method validation to stability studies and supplier qualification testing, NJ Labs helps manufacturers maintain high standards of quality control while meeting demanding regulatory expectations.

Supporting Quality Control Across Multiple Industries

Chemical testing services are not limited to a single industry. Today, laboratories support a wide range of manufacturing sectors including:

Specialty chemical manufacturing

Industrial and performance chemicals

Polymer and coating production

Adhesive manufacturing

Cleaning and sanitation chemicals

Contract manufacturing organizations

Each industry has unique analytical requirements, making customized testing strategies increasingly important.

NJ Labs works closely with manufacturers to develop tailored testing solutions that align with product specifications, operational goals, and compliance requirements.

Final Thoughts

As manufacturing standards continue to become more demanding, chemical testing and quality assurance will remain essential for long-term business success. Accurate analytical testing helps manufacturers improve product consistency, reduce operational risks, and maintain regulatory compliance in competitive global markets.

Partnering with an experienced chemical testing laboratory gives manufacturers access to advanced scientific expertise, modern instrumentation, and dependable analytical support. Whether for raw material verification, contaminant analysis, stability studies, or finished product evaluation, professional chemical testing services play a critical role in maintaining product integrity and operational efficiency.

For manufacturers seeking reliable, science-driven testing support, NJ Labs continues to be a trusted partner for comprehensive chemical testing and analysis solutions.

[njlabs]

Chemical Testing | NJ Labs

Comprehensive Chemical Testing Services for Manufacturers and Suppliers Reliable, compliant, and science-driven testing solutions that keep

[njlabs]

3rd Party Dietary Supplement & Nutraceutical Testing Lab | NJ Labs

NJ Labs is an ISO/IEC 17025-accredited, FDA-inspected 3rd party dietary supplement & nutraceutical supplement testing lab. We test potency,

[njlabs]

Analytical Chemistry & Microbiology Lab | NJ Labs

NJ Labs is a CGMP Analytical Chemistry & Microbiology Laboratory. Full Service FDA & DEA Inspected, ISO/IEC 17025:2017 Accredited Lab with c