Clean Label Project Certification: Protecting Consumers from Hidden Toxins
- Herbs around us
- Oct 1
- 3 min read
Updated: 5 days ago
When most people buy supplements, they look at the front label — ingredients, health claims, or certifications like Organic or Non-GMO. But what about the hidden contaminants that never appear on the label?
That’s where the Clean Label Project Certification comes in. This independent program tests dietary supplements for harmful substances such as heavy metals, pesticides, and industrial toxins. For U.S. consumers who want more than marketing claims, it’s becoming one of the most trusted signs of transparency.
What Is Clean Label Project Certification?
The Clean Label Project is a nonprofit organization that independently tests consumer products, including supplements, baby food, and protein powders.
Its certification focuses on:
Heavy metals like lead, arsenic, cadmium, and mercury.
Pesticide residues from agricultural ingredients.
Industrial contaminants such as BPA, phthalates, and plasticizers.
Truth in labeling, ensuring marketing claims match actual product quality.
Products that pass testing may display the Clean Label Project Certified seal.

Why Clean Label Certification Matters
Transparency Beyond the Label
Unlike FDA-required GMP rules, the Clean Label Project goes further by testing for contaminants that are not always regulated or disclosed.
Consumer Concerns About Safety
Reports of heavy metals in protein powders and herbal supplements have raised concerns. Certification provides reassurance that a brand is actively testing for these risks.
Trust and Brand Reputation
For supplement companies, earning this certification signals a strong commitment to consumer safety and transparency.
The Certification Process
Independent Testing – Products are sent to ISO-accredited labs for contaminant analysis.
Benchmarking – Results are compared against national and international safety standards.
Certification Approval – Products that meet or exceed safety thresholds can display the seal.
Ongoing Monitoring – Random off-the-shelf testing continues after certification is awarded.
How to Identify Clean Label Project Certified Supplements
Look for the Clean Label Project Certified seal on packaging.
Verify certification on the Clean Label Project Certified Products page.
Be cautious of brands that market “clean” or “natural” without independent testing.
Clean Label Project vs. Other Certifications
GMP Certification ensures safe manufacturing practices.
USP Verified confirms ingredient accuracy and purity.
Clean Label Project focuses specifically on hidden toxins and contaminants that are not always covered by other programs.
Some brands pursue multiple certifications (e.g., Organic + Non-GMO + Clean Label Project) to maximize consumer trust.
The Clean Label Project Certification fills a critical gap in supplement safety by testing for contaminants that don’t appear on the label. For consumers who want complete transparency, this seal offers assurance that products have been independently tested and verified for purity.
As awareness of hidden toxins grows, Clean Label Project certification is becoming a mark of excellence in the supplement industry — and one worth looking for when choosing products.
FAQs
Does the FDA require testing for heavy metals in supplements?
The FDA has guidelines, but testing is not always as strict or transparent as third-party programs like Clean Label Project.
Do all supplements carry Clean Label Project certification?
No. It is voluntary and currently less common than Organic or Non-GMO, but adoption is growing.
Is Clean Label Project certification global?
It is primarily U.S.-based but is gaining international recognition.
Where can I check if a supplement is certified?
The Clean Label Project database lists certified products.
References
Clean Label Project – Certification Program — www.cleanlabelproject.org
Consumer Reports – Heavy Metals in Supplements — www.consumerreports.org
FDA – Dietary Supplement Safety Overview — www.fda.gov