Supplement Testing and Stability Labs Compared
7 testing and stability laboratories compared by Amazon TIC status, ISO/IEC 17025 accreditation, testing services, and capabilities. 5 of 7 labs are Amazon-approved TIC providers. Organized alphabetically. This is not a ranking.
How to read this page. Each row presents factual, publicly available information about a testing laboratory. “Amazon TIC” indicates whether the lab is on Amazon's approved list of Testing, Inspection, and Certification providers for dietary supplement cGMP verification. ISO/IEC 17025 is the international standard for laboratory competence. Accreditation status indicates whether we confirmed the credential through an independent database (confirmed) or are reporting the lab's own claim (self-reported). Read our full comparison method →
| Laboratory | Location | Amazon TIC | ISO 17025 | Confirmed certs | Testing services | Lead time | Gaps |
|---|---|---|---|---|---|---|---|
| Alkemist Labs | Garden Grove, California | No | Confirmed | 1(+1 self-reported) | Botanical Identity Testing, Potency Testing, HPTLC Analysis, Microscopy, Mushroom Testing | Not publicly disclosed | 1 |
| Eurofins Scientific | Des Moines, Iowa | ✓ | Confirmed | 1(+2 self-reported) | Identity Testing, Potency Testing, Heavy Metals, Microbial Testing, Stability Studies, Pesticide Residues, Shelf-Life Studies | 5-10 business days (standard), varies for stability | 1 |
| Intertek | Champaign, Illinois | ✓ | Self-reported | 0(+2 self-reported) | Identity Testing, Potency Testing, Purity Testing, Microbial Testing, Shelf-Life Testing, Allergen Testing, Adulteration Screening | Not publicly disclosed | 1 |
| Labstat International | Kitchener, Ontario | No | Confirmed | 1(+1 self-reported) | Identity Testing, Potency Testing, Heavy Metals, Microbial Testing, Stability Studies, Health Canada NHP Testing | Not publicly disclosed | 2 |
| NSF International | Ann Arbor, Michigan | ✓ | Confirmed | 1(+1 self-reported) | Label Accuracy Testing, Contaminant Screening, Banned Substance Testing, Microbial Testing, Heavy Metals, Pesticide Testing | Not publicly disclosed | 1 |
| SGS Nutrasource | Harrisburg, Pennsylvania | ✓ | Confirmed | 1(+1 self-reported) | Heavy Metals Testing, Vitamins Analysis, Minerals Testing, Clinical Trial Services, Product Certification | Not publicly disclosed | 1 |
| UL Solutions | Canton, Massachusetts | ✓ | Self-reported | 0(+2 self-reported) | Identity Testing, Potency Testing, Heavy Metals, Pesticide Residues, Microbial Testing, DNA Testing (Botanicals) | Not publicly disclosed | 1 |
Selling supplements on Amazon? Since 2025, Amazon requires all dietary supplement sellers to verify cGMP compliance through an approved TIC provider. 5 of the 7 labs on this page are Amazon-approved, which means they can handle both your product testing and Amazon compliance verification in one step. Labs not on the approved list can still test your products, but you will need a separate TIC verification. Read our Amazon compliance guide →
What This Comparison Shows
Amazon TIC status
5 of 7 labs are on Amazon's approved list for dietary supplement cGMP verification. This matters because Amazon requires all supplement sellers to work with an approved TIC provider. If your lab is already on the list, you avoid the extra step (and cost) of a separate verification.
ISO/IEC 17025 accreditation
ISO/IEC 17025 is the international standard for testing laboratory competence. It confirms the lab follows validated test methods and maintains quality management systems. All 7 labs in this comparison list ISO 17025, though not all are independently confirmed. “Confirmed” means we found the accreditation in an independent database (A2LA, SCC, or ANAB registries). “Self-reported” means the lab claims the accreditation but we could not independently verify it at the time of review.
Testing services
Core supplement testing services include identity testing, potency (active ingredient quantification), heavy metals analysis, microbial testing, and stability studies. Some labs also offer specialized services like pesticide residue screening, allergen testing, banned substance testing, DNA testing for botanicals, and shelf-life prediction models.
What we could not verify
Common gaps include: standard turnaround times, pricing structures, specific test method lists (USP, AOAC, etc.), and sample submission requirements. Some labs serve multiple industries, and their supplement-specific capabilities may not be fully detailed on their public websites.
What This Comparison Does Not Show
- Test accuracy or reliability. Lab performance requires proficiency testing results and accreditation body audits to evaluate.
- Pricing. Testing costs vary by method, sample type, turnaround time, and volume. Request quotes directly.
- Customer experience or communication quality. We do not collect or publish subjective reviews.
- All available testing labs. Many qualified laboratories are not yet in our directory.
Last updated: March 15, 2026. Amazon TIC status verified against Amazon Seller Central's approved provider list. This comparison reflects information available at the time of each laboratory's last review. Individual profiles show their specific review dates. Lab capabilities, accreditations, and Amazon TIC status can change. Check individual profiles and lab websites for the most current information.
Disclaimer: This comparison is educational content based on publicly available information. It is not a recommendation, endorsement, or guarantee of any laboratory. Inventory Ready's assessments represent editorial opinions, not certifications or audits. Always conduct your own due diligence, including verifying accreditation status directly with the accreditation body, before selecting a testing partner. See our Terms of Service.