Frequently Asked Questions
Heavy Metal Tested is an independent, third-party certification program that verifies products have been tested for toxic heavy metals including lead, arsenic, cadmium, and mercury. Products that meet our safety thresholds receive the HMT certification seal.
Heavy Metal Tested is a program of the Paleo Foundation, which has over a decade of experience in product certification. We leverage this expertise to bring rigorous, science-based testing standards to the heavy metal certification space.
Consumers are increasingly concerned about heavy metal contamination. Certification demonstrates your commitment to product safety, builds consumer trust, and differentiates your brand in the marketplace. Certified brands are listed in our directory and can use the HMT seal on packaging.
We test for the four most concerning heavy metals: lead (Pb), arsenic (As), cadmium (Cd), and mercury (Hg). Testing is conducted using ICP-MS methodology, which provides the most accurate and sensitive detection available.
The standard certification process takes 4-8 weeks from application submission to certification. Rush processing options are available for an additional fee if you need expedited results.
Certification is valid for one year. Annual retesting is required to maintain your Heavy Metal Tested certification status. Multi-year licensing options are available with significant savings.
Pricing varies based on the number of products, certification tier, and licensing duration. Visit our pricing page for a detailed cost calculator, or contact us for a custom quote.
Yes! We offer 10% off for 2-year licenses and 20% off for 3-year licenses. Bundle discounts are also available when combining Heavy Metal Tested with other Paleo Foundation certifications.
We certify food products, dietary supplements, beverages, baby food, pet food, and other consumer products where heavy metal contamination is a concern. Contact us if you're unsure whether your product category qualifies.
Our thresholds are based on the most current scientific research and regulatory guidelines from the FDA, WHO, and other international bodies. Specific limits vary by product category to account for different risk profiles. Contact us for detailed threshold information.