Transparency Project Certification

1. Review eligibility and program scope: Visit the Clean Label Project website to confirm your product category (food, supplements, pet food, personal care, etc.) is eligible for the Transparency Project Certification and review the purity benchmarks your product must meet.

1. Prepare full ingredient disclosure: Compile a complete and accurate ingredient list for the product(s) you intend to certify. Full transparency in labeling is a prerequisite — proprietary blends that cannot be disclosed are incompatible with this program.

1. Submit an application: Complete the online application through the Clean Label Project portal. Provide product details, brand information, and select the product(s) for testing.

1. Pay the testing fee: Pay the applicable per-product testing fee (starting around $300 per product). Fees vary based on product category and the number of SKUs submitted.

1. Ship product samples to the lab: Send the required number of product samples to Clean Label Project's designated accredited third-party laboratory. Follow their sample submission guidelines carefully to avoid delays.

1. Laboratory testing is conducted: The lab screens your product for 400+ potential contaminants including heavy metals (lead, arsenic, cadmium, mercury), pesticide residues, plasticizers (BPA), and other harmful substances. This process typically takes several weeks.

1. Results review and certification decision: Clean Label Project's scientific team reviews the lab results against their purity benchmarks. If your product passes, you are awarded the Transparency Project Certification seal.

1. Display the seal and maintain certification: Use the certified seal on product packaging, marketing materials, and e-commerce listings. Plan for annual re-testing to maintain certification status.

The Transparency Project Certification evaluates consumer products through comprehensive independent laboratory testing rather than a document review or audit process. Products are screened for over 400 potential contaminants and harmful substances across several key categories.

Heavy Metals: Products are tested for lead, arsenic, cadmium, and mercury — contaminants that can accumulate in raw ingredients through soil, water, or manufacturing processes. Clean Label Project benchmarks are based on California Prop 65 limits and FDA guidance, often applying stricter thresholds than federal minimums.

Pesticide Residues: A broad panel of pesticide residues is screened, including organophosphates, organochlorines, pyrethroids, and other agricultural chemicals that may persist in food, supplement, or pet food ingredients.

Plasticizers and Industrial Chemicals: Products are tested for bisphenol A (BPA) and other plasticizers that can leach into products from packaging or processing equipment, as well as other industrial chemical contaminants.

Other Harmful Substances: Depending on product category, testing may also cover mycotoxins (mold-derived toxins), acrylamide, melamine, and other category-specific contaminants of concern.

Ingredient Transparency: Beyond lab testing, brands must provide full ingredient disclosure. Products with incomplete or misleading labeling are ineligible regardless of test results.

Products are benchmarked against Clean Label Project's proprietary purity standards, which are developed by their scientific advisory team and are generally more stringent than minimum regulatory requirements. A product must pass all applicable contaminant thresholds to earn certification — a single failing result in any category is grounds for denial.

The Clean Label Project occupies a distinctive niche in the consumer product certification landscape, positioned between regulatory compliance bodies (like the FDA) and performance-focused certifications (like NSF Certified for Sport or USP Verified). Its focus on contaminant testing and ingredient transparency resonates strongly with the growing clean-label consumer movement, which has seen sustained growth throughout the 2010s and 2020s as consumers increasingly scrutinize product ingredients and demand greater accountability from brands.

The Transparency Project Certification has gained meaningful traction in the natural and specialty retail channel, particularly among brands selling through Whole Foods Market, Thrive Market, and health-focused e-commerce platforms. The Clean Label Project's broader research publications — including widely-cited studies on heavy metals in baby food, protein powders, and pet food — have generated significant media coverage and consumer awareness, lending credibility to their certification programs. This earned media presence differentiates Clean Label Project from lesser-known certification bodies and gives their seal genuine consumer recognition.

Compared to competitors like NSF International or USP, Clean Label Project is a smaller and newer organization, but it has carved out a strong reputation specifically around contaminant transparency rather than identity testing or potency verification. Its nonprofit status and research-driven approach appeal to brands that want to signal values alignment, not just regulatory compliance. Demand for clean-label certifications broadly is growing, driven by consumer distrust of ingredient labels, high-profile contamination scandals, and the expansion of health-conscious retail. However, the market remains fragmented, and brands often pursue multiple certifications simultaneously to satisfy different retail partner requirements.

The Clean Label Project was founded in 2016 as a nonprofit consumer advocacy organization with a mission to bring scientific transparency to consumer product labeling. The organization was established in response to growing consumer concern about the gap between what product labels claim and what products actually contain — particularly regarding industrial and environmental contaminants that are not required to be disclosed on labels. The Transparency Project Certification was developed as the organization's formal credentialing mechanism to help brands publicly demonstrate their commitment to purity and honest labeling.

The Clean Label Project gained widespread public attention through a series of independent research studies published starting in 2017 and 2018, which tested popular protein powders, baby foods, and pet foods for heavy metals and other contaminants. These studies received extensive media coverage and helped establish the organization as a credible scientific voice in the clean-label space. The Transparency Project Certification has since expanded to cover a growing range of product categories, and the organization has continued to publish research that drives consumer awareness of contaminant risks in everyday products. The program reflects a broader industry trend toward third-party verification as a response to consumer skepticism about self-reported brand claims.