California Proposition 65 requires businesses to warn consumers about significant exposures to chemicals that cause cancer or reproductive harm — including lead, cadmium, arsenic, and mercury. For dietary supplements, foods, and consumer products sold in California, ICP-MS testing is the standard method to demonstrate compliance and avoid costly litigation.
Any product sold in California must comply with Prop 65. For dietary supplements and natural products, lead and cadmium from botanical ingredients are the most frequent triggers. A clear ICP-MS COA is your first line of defense.
Major California retailers and online marketplaces require Prop 65 documentation for supplements. Amazon, Whole Foods, and Target have all tightened enforcement.
Prop 65 private enforcement actions begin with a 60-day notice. Third-party ICP-MS testing is your evidence that exposures are below the MADL or NSRL thresholds.
Herbs grown in metal-rich soil — turmeric, ashwagandha, spirulina, and many others — frequently carry elevated lead and cadmium. Testing each ingredient lot is critical.
If you sell under your own brand in California, you bear Prop 65 liability. Third-party testing COA demonstrates due diligence and supports a safe harbor defense.
Prop 65 applies to online sales shipped into California. Amazon enforcement is increasing — sellers need COA documentation to maintain product listings.
Contract manufacturers importing raw materials from overseas must test for elevated metals that are common in internationally sourced botanical and mineral ingredients.
We test the four core Prop 65 metals and optional extended panels for food/supplement compliance:
Submitting takes less than 5 minutes. Most projects turn around in 5–10 business days from sample receipt.
Send a brief project description — sample type, quantity, and timeline. We confirm turnaround and quote within one business day.
We'll send a submission form and our San Diego shipping address. Most samples ship ambient or cold depending on stability requirements.
Results are delivered as a signed PDF COA within the agreed turnaround. Rush service (2–3 business days) is available for urgent timelines.
Send us your samples and receive an ISO 17025 accreditation pending Certificate of Analysis. Results in 5–10 business days.