Why Heavy Metal Testing Matters for Supplement Brands
At SREKE, we understand that heavy metal contamination is one of the most critical risks in dietary supplement manufacturing. Raw botanicals, minerals, and processing environments can introduce lead, arsenic, cadmium, and mercury into your products. Regulatory bodies like the FDA and EFSA enforce strict limits, and non-compliance can result in recalls, legal liability, and brand damage.
We prioritize transparent, science-backed testing to ensure every batch meets USP <232> and <233> guidelines, as well as EFSA maximum limits for elemental impurities. Our clients rely on us to safeguard their brand reputation while delivering safe, high-quality supplements.
Key Manufacturing Considerations at SREKE
Rigorous Testing Protocols
Our facility employs inductively coupled plasma mass spectrometry (ICP-MS) and atomic absorption spectroscopy to detect trace heavy metals. We test every incoming raw material, in-process sample, and finished product. This multi-point verification ensures compliance with FDA cGMPs (21 CFR Part 111) and EFSA standards.
Raw Material Screening
We require suppliers to provide certificates of analysis (CoA) and conduct our own verification testing. For botanicals and mineral-derived ingredients, we assess geographic origin and processing methods to minimize contamination risks.
Documentation and Traceability
Every batch is fully traceable from raw material to finished product. Our quality management system maintains detailed records, enabling quick audits and regulatory submissions. We provide comprehensive CoAs with each order.
How SREKE Helps You Get to Market Faster
At SREKE, we streamline the path from formulation to shelf. Our OEM/ODM services include:
- MOQ Flexibility: Low minimum orders for startups and scalable production for established brands.
- Lead Time Efficiency: Standard production runs complete in 4–8 weeks, with expedited options available.
- Formulation Support: Our R&D team optimizes blends for stability, bioavailability, and compliance.
- Packaging Options: Softgels, capsules, tablets, powders, gummies, and liquids in child-resistant, sustainable, or custom packaging.
- Quality Assurance: Dedicated account managers guide you through testing, certification, and regulatory documentation.
We handle the complexities of heavy metal testing and GMP compliance so you can focus on branding and distribution.
Industry Trends and Market Opportunities
The global dietary supplement market increasingly demands proof of purity. Consumers and retailers expect third-party testing and transparent sourcing. Brands that prioritize heavy metal compliance gain a competitive edge, especially in regulated markets like the EU and North America.
At SREKE, we stay ahead of evolving regulations such as EFSA's updated limits on lead and cadmium, and the FDA's strengthened cGMP enforcement. Our proactive approach helps you capture market share while mitigating risk.
Frequently Asked Questions
What heavy metals do you test for?
We test for lead, arsenic, cadmium, mercury, and other elemental impurities per USP <232> and EFSA guidelines.
How often do you test?
Every batch undergoes heavy metal testing at raw material, in-process, and finished product stages.
Do you provide certificates of analysis?
Yes, each shipment includes a CoA detailing test results, including heavy metal compliance.
What are your MOQs?
MOQs vary by product type and packaging. Contact our team for specific details.
How long does production take?
Standard lead times are 4–8 weeks, with expedited options for urgent orders.
Can you help with formulation?
Absolutely. Our R&D team offers ODM services and custom formulation support.
Are your facilities GMP certified?
Yes, our Guangzhou facility is certified under FDA cGMP, ISO 9001, and HACCP.
Do you comply with EFSA regulations?
We design and test products to meet EFSA limits for elemental impurities in food supplements.
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.