Why Heavy Metal Testing Matters for Supplement Brands
At SREKE, we understand that heavy metal contamination is one of the most critical compliance risks facing supplement brands today. The FDA has issued numerous warning letters to companies for exceeding permissible limits of lead, cadmium, arsenic, and mercury in dietary supplements. Under USP <232> and <233> guidelines, elemental impurities must be controlled throughout the manufacturing process. In the EU, EFSA sets strict maximum levels for heavy metals in food supplements, and non-compliance can result in product recalls and market bans.
Consumer trust is built on safety. Third-party testing and transparent COAs are no longer optional—they are expected by retailers, distributors, and health-conscious buyers. At SREKE, we integrate heavy metal screening at every stage: raw material intake, in-process checks, and finished product release.
Key Manufacturing Considerations at SREKE
Our GMP-certified facility in Guangzhou follows a rigorous quality management system aligned with ISO 22000, HACCP, and FDA 21 CFR Part 111. We qualify every supplier through audits and require Certificates of Analysis (CoA) with heavy metal results before materials enter our warehouse. Our in-house analytical lab uses ICP-MS and AAS methods to test for lead, cadmium, arsenic, mercury, and other elemental impurities.
We offer flexible MOQs starting from 5,000 units per SKU, with lead times as short as 30–45 days for standard formulations. Our ODM team can develop custom formulas that meet both US and EU heavy metal limits, and we provide full compliance documentation including GAP/GMP certificates, test reports, and labeling review. Packaging options include child-resistant bottles, blisters, and sustainable materials—all produced under controlled environments to prevent cross-contamination.
How SREKE Helps You Get to Market Faster
At SREKE, we streamline the path from concept to shelf. Our integrated R&D and quality assurance teams work in parallel to optimize formulations, select low-risk raw materials, and validate testing protocols early. We maintain a library of pre-qualified ingredients with documented heavy metal profiles, reducing development time and compliance uncertainty. For brands targeting export markets, we assist with regulatory filings for the US FDA, EU EFSA, and other regional authorities.
Our production lines are dedicated to softgels, capsules, tablets, powders, gummies, and liquids, each with separate handling procedures to minimize contamination risk. We provide batch traceability, stability testing, and ongoing stability monitoring to ensure product integrity throughout shelf life. Contact our team to discuss your project timeline and compliance requirements.
Industry Trends and Market Opportunities
The global dietary supplement market continues to prioritize purity and transparency. Retailers such as Amazon, Walmart, and iHerb now require third-party heavy metal testing before listing products. Brands that proactively adopt USP <232>/<233> standards gain a competitive edge and reduce recall risk. At SREKE, we see growing demand for clean-label formulas with minimal elemental impurities, especially in adaptogens, botanical extracts, and mineral supplements.
We also observe increased interest in sustainable sourcing and supply chain audits. Our facility supports blockchain traceability for key ingredients, allowing brand owners to verify origin and testing history. By partnering with a compliant OEM/ODM manufacturer like SREKE, you can focus on marketing and distribution while we ensure your product meets the highest safety and regulatory standards.
Frequently Asked Questions
What heavy metals do you test for in supplements?
We routinely test for lead, cadmium, arsenic, mercury, aluminum, barium, and nickel using validated ICP-MS methods, following USP <232> permissible daily exposure limits and EFSA maximum levels.
Do you provide Certificates of Analysis for finished products?
Yes. Every batch shipped from our facility includes a detailed CoA with heavy metal results, microbial limits, potency, and other specification checks.
What is your minimum order quantity (MOQ)?
Our standard MOQ is 5,000 units per SKU for most dosage forms. Custom packaging or private label options may have higher MOQs—contact us for specifics.
Can you help with FDA registration and EU compliance?
Absolutely. We assist with facility registration, dietary supplement listing, and documentation required for US and EU market access.
How long does production take?
Typical lead time is 30–45 days from formula approval to shipment, depending on complexity, packaging, and testing requirements.
Ready to launch your supplement brand? SREKE provides GMP-certified OEM/ODM manufacturing for softgels, capsules, tablets, powders, gummies, and liquids. Contact us for a free quote or email [email protected] — we respond within 24 hours.