NJ Labs conducts dietary supplements & nutraceuticals testing using ISO/IEC 17025:2017 accredited methods, ensuring every result is accurate, traceable, and defensible under regulatory scrutiny. Our method library spans USP/NF and FCC compendial techniques alongside scientifically validated in-house methods, industry-supplied protocols, and client-furnished specifications giving manufacturers the flexibility to meet diverse product requirements without sacrificing analytical rigor. Testing covers the full product lifecycle: raw material qualification, potency and label claim verification, supplement purity testing for heavy metals and contaminants, microbial limits testing, and stability testing for dietary supplements. With over 500 routine methods available, we provide comprehensive quality testing across raw materials, in-process samples, and finished products.
Microbial contamination is one of the most common and most consequential quality failures in supplement manufacturing. NJ Labs performs comprehensive nutraceutical microbial testing including total aerobic plate count, total combined yeast and Mold count, detection of specified pathogens (Salmonella, E. coli, Staphylococcus aureus, Pseudomonas aeruginosa, and Listeria monocytogenes via in-house validated method), and water activity testing. Our microbiological testing follows USP <2021>, USP <2022>, and FDA-aligned methods, providing the documented evidence of microbial compliance your customers and regulatory submissions require.
Formulation stability directly affects label accuracy, product safety, and regulatory standing. NJ Labs conducts stability studies for dietary supplements under controlled temperature and humidity conditions, monitoring potency retention, physical characteristics, and microbial integrity across defined time points. Our environmental control chambers support both real-time and accelerated study designs, and our team works with you to develop a protocol tailored to your formulation, packaging, and distribution conditions.
NJ Labs’ analytical instrumentation supports the full range of dietary supplements & nutraceuticals testing requirements. Our facility is equipped with ICP-MS with Microwave Digestion for heavy metals and trace element analysis, HPLC, UPLC, and LC-MS for potency and contaminant quantification, HPTLC for botanical identification, GC-MS and GC for residual solvents and volatile compound analysis, FTIR and UV-Vis for identity and purity testing, Auto Titrators for moisture and acid value determinations, and Environmental Control Chambers for stability studies under defined temperature and humidity conditions. This breadth of instrumentation allows NJ Labs to handle complex, multi-ingredient supplement matrices with precision – without outsourcing any phase of the analysis.
NJ Labs provides third-party testing for a wide range of ingredients and formulations commonly found in dietary supplements, including:
With decades of experience supporting supplement manufacturers, NJ Labs helps you identify and resolve quality and compliance issues before they reach consumers. Whether you need a single lot release test or an ongoing quality testing program, our team is ready to build a protocol around your product. Contact NJ Labs today to discuss your dietary supplements & nutraceuticals testing needs.
NJ Labs provides independent, third-party purity testing and analytical certification for dietary supplement ingredients and food additives used in pharmaceutical and nutraceutical applications. Our ISO/IEC 17025:2017 accreditation and FDA-inspected status mean our test reports carry the credibility required for regulatory submissions, supplier qualification programs, and certificate of analysis (CoA) verification. Contact us to discuss documentation requirements specific to your product and intended market.
