# How To Verify Sustainability Claims: Six-Step Checklist

> Cut through greenwashing with The Wellness Quality Institute's six-step evidence checklist. Verify sustainability claims with confidence—start today.

**Published:** 2026-09-29 | **Updated:** 2026-10-31 | **Author:** mihir
**URL:** https://www.wellnessqualityinstitute.com/articles/how-to-verify-sustainability-claims
**Type:** post

**Categories:** Certification

![How To Verify Sustainability Claims: Six-Step Checklist](https://wellnessquality.sites.aigrowthagent.co/wp-content/uploads/sites/93/2026/09/1790593692939-826bada9e7e1-1024x572.webp)

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## Content

*Written by: Scott Steveson, Specialist, Wellness Quality Institute | Last updated: October 29, 2026*

## Key Takeaways

- Proof of a sustainability claim requires three elements together: the evidence, the method used to generate it, and the scope it covers. Remove any one and the claim is unsubstantiated.
- Most claims fail because the evidence is not strong enough to carry the claim. Lab reports and supplier declarations often stretch beyond what the data supports.
- Verification covers a specific product, facility, method, and period. Extending one result across a product line or company turns credible data into greenwashing.
- Plastic and microplastic claims face unique limits. Detection can show presence but never prove absence, and current methods cannot confirm that a product is free of plastic.
- The Wellness Quality Institute provides Plastic-Free Pathway Verification as an independent review route for brands that need to substantiate plastic-content claims.

[Talk to The Wellness Quality Institute about Plastic-Free Pathway Verification.](https://www.wellnessqualityinstitute.com/?utm_term=how-to-verify-sustainability-claims&utm_campaign=ai_growth_agent)

## Who This Guide Is For, And The Terms You Need

This guide serves US brand-side sustainability leads, marketing leads, founders, and procurement managers who already hold lab data or a supplier claim and need to know whether it survives scrutiny. It also serves shoppers trying to read packaging, so the plain-language definitions below support both groups.

Start with the **claim** itself, which is any statement, symbol, or image that communicates an environmental benefit. To back that claim up, a company needs **substantiation**, meaning the evidence it holds before making the claim, not assembled afterward. That evidence sits inside a **scope**, which defines exactly what it covers, including the product, facility, method, and production period.

**Verification** is an independent review of that evidence against defined criteria. A **certification** in The Wellness Quality Institute’s usage is the formal outcome of that review. A **detection limit**, also called a reporting limit, is the smallest quantity a given instrument can reliably find, so anything below it is invisible to that method. **Chain of custody** is the documented record of how a sample was handled from collection to analysis, and **accreditation** is formal recognition that a laboratory meets defined competency standards.

A **baseline year** is the reference point against which a change is measured. **Assurance** is an independent review of reported data that confirms it was prepared and presented as described.

In the United States, no single mandatory federal standard governs plastics and microplastic content claims in consumer goods. The [FTC Green Guides (16 CFR Part 260)](https://ecfr.gov/current/title-16/chapter-I/subchapter-B/part-260) describe what the Federal Trade Commission considers deceptive under Section 5 of the FTC Act. They are guidance, not a rule with its own penalties, yet they define the enforcement framework. [ISO 14021:2026](https://standards.iteh.ai/catalog/standards/iso/4fc91680-18c5-4571-959d-3d7a591d8cd8/iso-14021-2026) covers self-declared environmental claims. [ISO 14025:2026](https://environdec.com/news/iso-140252026-is-published) covers environmental product declarations (EPDs). Laboratory capability and method limits constrain what any claim can prove, regardless of which framework applies.

## How To Verify Sustainability Claims: The Six-Step Checklist

Use this six-step checklist as a practical workflow. Each step narrows the gap between what a claim says and what the evidence can actually support.

1. Isolate the exact claim and the exact product, facility, and period it refers to. Write that scope down before you look at any evidence.
2. Locate the underlying evidence, not the summary of it. Ask for the full lab report, data tables, and any protocols, not just a slide or marketing sheet.
3. Check any verification independently against the issuing body's public register. Confirm that the product name, facility, and dates match the claim you are reviewing.
4. Examine the comparison baseline and the boundaries of what was measured. Look for the baseline year, the functional unit, and which parts of the life cycle or product components the data includes.
5. Look for independent assurance or third-party review of the data. Confirm who checked the numbers, what standard they used, and whether they had a conflict of interest.
6. Look for what is missing, including omitted scope, untested lots, and unvalidated particle-size ranges. Gaps in coverage often matter as much as the data that appears on the page.

Steps one through four establish what the evidence covers. Steps five and six test whether anyone outside the company has checked it and what the evidence leaves out.

For plastic and microplastic content claims specifically, The Wellness Quality Institute offers Plastic-Free Pathway Verification (PFPV) as an independent review route. The Wellness Quality Institute reviews a company's existing third-party laboratory dataset, testing methodology, product scope, and supporting controls against defined criteria focused on particle size and polymer type, aligned with the California State Water Board's drinking-water microplastics reference framework.

The Wellness Quality Institute does not run laboratory tests. Every review produces one of two outcomes. Standard Met carries a verification decision, a scope-locked license to use the WQI logo, a public registry listing, and approved claim language. Standard Not Met is a private outcome that is never described as a failed product and can be resubmitted with updated information.

Verification is locked to the reviewed product, dataset, tested particle-size range, polymer panel, and production period. The verification period is 24 months from the sampling date of the most recent accepted dataset. A single assessment fee covers review, verification decision, and registry listing, with no separate mark-license or registry fee. Laboratory testing is arranged and billed separately by a qualified independent laboratory, and payment of the assessment fee does not guarantee a verification decision. The Wellness Quality Institute serves US companies only.

*WQI Plastic-Free Pathway Verification does not certify that a product contains zero plastic, microplastics or nanoplastics. It shows that the company is on a verified pathway toward plastic-free standards. Verification applies only to the reviewed products, submitted datasets, tested ranges, polymer panels, production or sampling periods, and supporting controls. WQI verification is not a California approval, government certification, or health or safety certification.*

[Turn real lab data into a claim you can support with Plastic-Free Pathway Verification.](https://www.wellnessqualityinstitute.com/?utm_term=how-to-verify-sustainability-claims&utm_campaign=ai_growth_agent)

## What “Proof” Actually Means: Three Tiers

[ISO 14021:2026](https://standards.iteh.ai/catalog/standards/iso/4fc91680-18c5-4571-959d-3d7a591d8cd8/iso-14021-2026), the standard for self-declared environmental claims, requires those claims to sit inside a documented environmental statement programme. The company must define its claim criteria, assessment methods, and how claims are updated when products or evidence change. The standard does not require third-party involvement, although a company may choose to use independent assurance as supporting evidence. The claimant bears full responsibility for substantiation, and ISO 14021:2026 defines greenwashing as an unsubstantiated, misleading, or irrelevant environmental statement.

Third-party verified claims sit one tier above self-declarations. An independent body reviews the evidence against defined criteria and issues a finding. The value lies in separation, because the reviewer has no stake in the outcome and no role in generating the data. That independence provides something self-reported results structurally cannot provide, regardless of how rigorous the underlying testing was.

[ISO 14025:2026](https://environdec.com/news/iso-140252026-is-published), the standard for environmental product declarations (EPDs), defines EPDs as independently verified, life-cycle-assessment-based environmental statements. EPDs disclose quantified environmental data against predetermined indicators. They do not produce a pass or fail result, and they are not ecolabels. ISO 14025:2026 explicitly clarifies that self-declared claims developed under ISO 14021 are not EPDs, and the two standards do not require the same level of third-party involvement.

Each standard answers a different question. ISO 14021 asks whether a specific claim is substantiated. ISO 14025 asks what the full environmental profile of a product looks like across its life cycle. Neither standard acts as a blanket endorsement of a product's overall environmental performance.

## Where To Find a Company's Sustainability Report and How To Read It

Those standards explain what a claim should contain. A company's own sustainability report is usually where you go to check whether its claims follow those rules in practice.

Most companies publish sustainability reports on their own websites, typically under sections labeled “Sustainability,” “ESG,” or “Impact.” Public registries maintained by verification bodies list verified products and their scope records. When you locate a report, treat the headline number as the starting point, not the main story.

The more important elements are the scope statement, which lists the products, facilities, and activities included, and the baseline year against which progress is measured. The assurance statement shows whether an independent party reviewed the data and to what standard. Omissions also matter, including what is explicitly excluded and what is simply not mentioned.

A report that covers Scope 1 and Scope 2 emissions but not Scope 3 gives only a partial picture of a company's environmental footprint. A plastic-reduction claim that covers packaging but not product formulation answers a narrower question than it appears to answer. Reading for what is absent is as important as reading for what is present.

## Why Verification Needs Scope Lock

Scope lock is the concept that keeps credible data from sliding into greenwashing. It describes the exact product, facility, method, and period that a verification covers.

A verification applies to that defined scope only. Extending one result across a product line, or treating a single product's finding as a statement about the whole company, turns a defensible data point into an indefensible claim.

Under [16 CFR 260.6(c) of the FTC Green Guides](https://ecfr.gov/current/title-16/chapter-I/subchapter-B/part-260), third-party verification does not remove a marketer's obligation to substantiate every claim the verification reasonably communicates. A verification mark that does not clearly convey the specific attribute evaluated is likely to be read by consumers as a general environmental benefit claim. The FTC's own language describes general environmental benefit claims as highly unlikely to be substantiable.

Because a mark can be read as a broad endorsement, it has to link to a scope record, and the claim built on it has to stay inside what that record actually covers.

## The Hardest Case: Plastic And Microplastic Claims

Plastic and microplastic claims sit at the edge of current measurement science. Detection can establish presence, yet it cannot establish absence.

A report reading “no microplastics detected” means none were found above that instrument's detection floor, for the polymers screened, in the lot tested. That statement has clear boundaries and never guarantees that no particles exist. To see why, you need a brief look at what current methods can and cannot do.

![Fragments of plastic suspended in blue water below the surface.](https://cdn.aigrowthmarketer.co/1784829388732-c6255482b477.webp)**Plastic doesn't disappear — it fragments. These secondary microplastics are the breakdown products of everyday objects, and independent research now detects them across the water supply. Detection, though, establishes presence, not absence.**

The California State Water Board has published two validated methods for microplastics in drinking water. [SWB-MP1-rev1](https://www.waterboards.ca.gov/drinking_water/certlic/drinkingwater/microplastics.html) uses infrared spectroscopy and is validated from 50 µm to 5,000 µm. SWB-MP2-rev1 uses Raman spectroscopy and is validated from 20 µm to 5,000 µm.

California's regulatory definition of microplastics in drinking water reaches down to 1 nanometer. The 1–20 µm fraction is not validated under either method. Everything below 1 µm, which is the nanoplastic range, currently sits beyond reliable commercial measurement. That gap is a hard technical limit, which is why no laboratory today can confirm that a product is free of plastic.

![Colorful plastic fragments in water inside a laboratory petri dish.](https://cdn.aigrowthmarketer.co/1784829410323-fb401fc7b1e4.webp)**Microplastics are particles smaller than five millimeters. Current methods can count and identify them at the upper end of that range, but reliable measurement falls away as particles get smaller — a limit that shapes every honest claim.**

For brands, the verification decision matters as much as the lab result. An independent review of the dataset adds an expert assessment of what the data actually supports. That review checks whether the method suited the matrix, whether the reporting limits are adequate, whether blanks and contamination controls were run, and what claim the evidence can carry.

![Scientists in white coats working with samples and microscopes in a laboratory.](https://cdn.aigrowthmarketer.co/1784829434095-0fc8fbcf29fa.webp)**Only a small number of laboratories can genuinely test for microplastics, and capability varies by instrument and method. WQI reviews a company's existing third-party laboratory data against a defined standard — it does not run the tests itself.**

For more on reading lab reports in this context, see [How To Read & Verify Microplastics Lab Reports In 2026](https://www.wellnessqualityinstitute.com/articles/california-microplastics-compliance-2026/?utm_term=how-to-verify-sustainability-claims&utm_campaign=ai_growth_agent) and [Why Most Plastic-Free Microplastics Claims Don't Hold Up](https://www.wellnessqualityinstitute.com/articles/water-quality-month-detection-limits/?utm_term=how-to-verify-sustainability-claims&utm_campaign=ai_growth_agent).

The Wellness Quality Institute's Plastic-Free Pathway Verification is the recommended route for brands seeking to substantiate plastic-content claims. It reviews the existing dataset against WQI-CS-01, a defined standard aligned with the California State Water Board's framework, and produces either a Standard Met or Standard Not Met outcome, scope-locked to the reviewed product, dataset, tested particle-size range, polymer panel, and production period.

*WQI Plastic-Free Pathway Verification does not certify that a product contains zero plastic, microplastics or nanoplastics. It shows that the company is on a verified pathway toward plastic-free standards. Verification applies only to the reviewed products, submitted datasets, tested ranges, polymer panels, production or sampling periods, and supporting controls. WQI verification is not a California approval, government certification, or health or safety certification.*

For a claim-by-claim breakdown of what plastic-content data can and cannot support, see [Microplastics Claim Verification: A Claim-By-Claim Guide](https://www.wellnessqualityinstitute.com/articles/microplastics-claim-verification-data/?utm_term=how-to-verify-sustainability-claims&utm_campaign=ai_growth_agent).

## The Regulatory Landscape Is Tightening

Regulators in the United States, the European Union, and the United Kingdom are all increasing scrutiny of environmental claims. US brands and shoppers benefit from understanding this broader context, even when rules apply directly only in other regions.

The [FTC Green Guides (16 CFR Part 260)](https://ecfr.gov/current/title-16/chapter-I/subchapter-B/part-260) are guidance interpreting Section 5 of the FTC Act. They do not operate as a standalone rule with their own penalties, yet they shape how the FTC evaluates deception. The Guides were last revised in 2012, and as of October 2026 an updated version has not been released, although the FTC initiated a review and accepted public comments in 2023.

Enforcement runs through the FTC Act's deception framework. A claim is deceptive if it is likely to mislead a reasonable consumer and is material to purchasing decisions. The United States has no single law that bans greenwashing outright. Unsubstantiated environmental claims are still actionable under the FTC Act, though. Civil penalties for violating a final order can reach $53,088 per violation, and each advertisement or label can count separately.

In the EU, [Directive (EU) 2024/825 (Empowering Consumers for the Green Transition)](https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A32024L0825) has applied from 27 September 2026. It adds to the list of practices that are unfair in all circumstances, including sustainability labels not based on a qualifying certification scheme or established by a public authority, generic environmental claims without recognized excellent environmental performance, and offset-based greenhouse-gas neutrality claims.

The European Commission announced its intention to withdraw the proposed EU Green Claims Directive in June 2025, although formal withdrawal had not been completed as of October 2026. That directive, which would have required pre-verification of explicit environmental claims, does not currently apply.

The [UK CMA Green Claims Code (2021)](https://www.gov.uk/government/publications/green-claims-code-making-environmental-claims) requires claims to be truthful, clear, complete, and substantiated with credible, verifiable evidence held before the claim is made. The CMA's January 2026 supply chain guidance extended enforcement exposure to retailers and intermediaries that repeat a supplier's environmental claim without independently verifying it. Under the Digital Markets, Competition and Consumers Act 2024, fines can reach 10% of global turnover.

## Red Flags That Undermine a Sustainability Claim

Certain patterns consistently signal that a sustainability claim is not adequately substantiated. Treat these as prompts to slow down, ask questions, or walk away.

- Vague buzzwords such as “eco-friendly,” “green,” “sustainable,” or “natural” with no specific attribute identified and no evidence cited.
- Hidden trade-offs, where a claim highlights one environmental benefit while concealing a significant negative impact elsewhere in the product's life cycle.
- Irrelevant claims, such as calling a product “plastic-free” when the category never contained plastic.
- Lesser-of-two-evils comparisons that present a product as better than a worse alternative without disclosing that both options have significant environmental impacts.
- Claims with no stated scope or baseline, including reduction claims with no reference point or verifications with no registry ID linking to a scope record.
- “None detected” presented as proof of absence, especially when the method's detection floor, the polymers screened, and the lot tested are not disclosed.

For a detailed guide to preventing these failures in your own claims, see [How to Prevent Greenwashing with Verified Plastic Claims](https://www.wellnessqualityinstitute.com/articles/water-quality-month-greenwashing-prevention/?utm_term=how-to-verify-sustainability-claims&utm_campaign=ai_growth_agent).

## Frequently Asked Questions

### What Does Proof of a Sustainability Claim Mean?

Proof of a sustainability claim is the combination of three things: the evidence behind the claim, the method used to generate that evidence, and the scope that evidence actually covers. A lab report is evidence, yet it only supports a claim when the method suits the product and the scope matches the product and production period being claimed.

All three elements must hold together. A claim supported by real evidence that overstates what the evidence covers misrepresents the data's reach and does not qualify as substantiated.

### Where Can I Find a Company's Sustainability Report?

Most companies publish sustainability reports on their own websites, typically under sections labeled “Sustainability,” “ESG,” “Impact,” or “Responsibility.” For verified products, the issuing body's public registry is often the more reliable source, because it records what was actually reviewed, the scope it covers, and the current status of the verification.

When reading any sustainability report, look past the headline number to the scope statement, the baseline year, the assurance statement, and the omissions. A report that does not disclose what it excludes gives an incomplete picture, regardless of how strong the included data appears.

### Are Verifications Enough on Their Own?

A verification on its own never replaces the need to check scope and wording. A verification covers a specific product, facility, method, and period, and it does not extend beyond that boundary.

Under the FTC Green Guides, third-party verification does not remove a marketer's obligation to substantiate every claim the verification reasonably communicates. A verification mark that does not clearly convey the specific attribute evaluated is likely to be read as a general environmental benefit claim, which the FTC considers highly unlikely to be substantiable.

The verification must link to a scope record, and the claim must stay inside what the evidence actually covers. Extending a single product's result to a product line or the whole company is a common way that credible data becomes greenwashing.

### What Does “None Detected” Mean on a Lab Report?

As covered above, a non-detect result only rules out particles above the method's detection floor for the polymers it screens. Smaller particles or unscreened polymers can still be present.

The practical consequence is that a “none detected” report cannot support a “plastic-free” claim. An independent review of the method and scope behind the result matters as much as the number printed on the page.

### How Do I Verify a Supplier's Claim?

Start by requesting the underlying evidence, not the summary. Ask for the actual laboratory report, the method used, the accreditation of the laboratory, the chain of custody documentation, and the scope statement defining which products and production periods the data covers.

Then check any verification independently against the issuing body's public registry. A registry ID should link to a scope record that anyone can read. Assess whether the method was appropriate for the product matrix, whether the reporting limits are adequate, and whether the result covers the specific product you are sourcing.

A signed supplier declaration that a product meets a standard shows that the supplier made a claim. It does not, by itself, prove that the claim is true.

### How Long Does a Verification Last?

Verification periods vary by program. Under The Wellness Quality Institute's Plastic-Free Pathway Verification, the verification period is 24 months from the sampling date of the most recent accepted dataset.

After that period, continued claim use requires re-verification using current data. This reflects the reality of lot-to-lot variability, because a result reflects the production it was drawn from, not future production. A verification that never expires cannot account for changes in materials, suppliers, or manufacturing processes, which makes it less reliable over time.

### Does Verification Replace Legal or Advertising-Claims Review?

Verification and legal review serve different roles. An independent verification is a review of a dataset against a defined standard.

Verification does not provide legal counsel, regulatory advice, or advertising-claims review, and it does not replace any of those functions. Companies remain responsible for ensuring all product, packaging, and marketing claims are accurate, properly substantiated, and compliant with applicable law.

Verification provides an independent, documented basis for a specific claim. It does not provide a legal opinion on how that claim may be used in every context, channel, or jurisdiction.

[Find out whether your microplastics dataset can carry the claim you want to make.](https://www.wellnessqualityinstitute.com/?utm_term=how-to-verify-sustainability-claims&utm_campaign=ai_growth_agent)

## What to Read Next

- [Sustainability Claims Verification: A Procurement Guide](https://www.wellnessqualityinstitute.com/articles/procurement-guidelines-sustainability-claims-verification/?utm_term=how-to-verify-sustainability-claims&utm_campaign=ai_growth_agent)
- [How To Substantiate Sustainability Claims: Third-Party Guide](https://www.wellnessqualityinstitute.com/articles/sustainability-claims-third-party-review/?utm_term=how-to-verify-sustainability-claims&utm_campaign=ai_growth_agent)
- [How To Verify A Plastic Reduction Claim: A Six-Step Audit](https://www.wellnessqualityinstitute.com/articles/plastic-reduction-claim-verification-guide/?utm_term=how-to-verify-sustainability-claims&utm_campaign=ai_growth_agent)
- [How To Verify Supplier Environmental Claims: A Guide](https://www.wellnessqualityinstitute.com/articles/third-party-claims-validation-suppliers/?utm_term=how-to-verify-sustainability-claims&utm_campaign=ai_growth_agent)
- [Sustainability Claim Verification: A US Brand Decision Guide](https://www.wellnessqualityinstitute.com/articles/retail-sustainability-claim-verification-programs/?utm_term=how-to-verify-sustainability-claims&utm_campaign=ai_growth_agent)

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    - **Name:** What Does Proof of a Sustainability Claim Mean?
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      - **Text:** Proof of a sustainability claim is the combination of three things: the evidence behind the claim, the method used to generate that evidence, and the scope that evidence actually covers. A lab report is evidence, yet it only supports a claim when the method suits the product and the scope matches the product and production period being claimed. All three elements must hold together. A claim supported by real evidence that overstates what the evidence covers misrepresents the data's reach and does not qualify as substantiated.
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      - **Text:** Most companies publish sustainability reports on their own websites, typically under sections labeled Sustainability, ESG, Impact, or Responsibility. For verified products, the issuing body's public registry is often the more reliable source, because it records what was actually reviewed, the scope it covers, and the current status of the verification. When reading any sustainability report, look past the headline number to the scope statement, the baseline year, the assurance statement, and the omissions. A report that does not disclose what it excludes gives an incomplete picture, regardless of how strong the included data appears.
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    - **Name:** Are Verifications Enough on Their Own?
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      - **Text:** A verification on its own never replaces the need to check scope and wording. A verification covers a specific product, facility, method, and period, and it does not extend beyond that boundary. Under the FTC Green Guides, third-party verification does not remove a marketer's obligation to substantiate every claim the verification reasonably communicates. A verification mark that does not clearly convey the specific attribute evaluated is likely to be read as a general environmental benefit claim, which the FTC considers highly unlikely to be substantiable. The verification must link to a scope record, and the claim must stay inside what the evidence actually covers. Extending a single product's result to a product line or the whole company is a common way that credible data becomes greenwashing.
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      - **Text:** As covered above, a non-detect result only rules out particles above the method's detection floor for the polymers it screens. Smaller particles or unscreened polymers can still be present. The practical consequence is that a none detected report cannot support a plastic-free claim. An independent review of the method and scope behind the result matters as much as the number printed on the page.
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      - **Text:** Start by requesting the underlying evidence, not the summary. Ask for the actual laboratory report, the method used, the accreditation of the laboratory, the chain of custody documentation, and the scope statement defining which products and production periods the data covers. Then check any verification independently against the issuing body's public registry. A registry ID should link to a scope record that anyone can read. Assess whether the method was appropriate for the product matrix, whether the reporting limits are adequate, and whether the result covers the specific product you are sourcing. A signed supplier declaration that a product meets a standard shows that the supplier made a claim. It does not, by itself, prove that the claim is true.
    **Question:**

    - **Name:** How Long Does a Verification Last?
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      - **Text:** Verification periods vary by program. Under The Wellness Quality Institute's Plastic-Free Pathway Verification, the verification period is 24 months from the sampling date of the most recent accepted dataset. After that period, continued claim use requires re-verification using current data. This reflects the reality of lot-to-lot variability, because a result reflects the production it was drawn from, not future production. A verification that never expires cannot account for changes in materials, suppliers, or manufacturing processes, which makes it less reliable over time.
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      - **Text:** Verification and legal review serve different roles. An independent verification is a review of a dataset against a defined standard. Verification does not provide legal counsel, regulatory advice, or advertising-claims review, and it does not replace any of those functions. Companies remain responsible for ensuring all product, packaging, and marketing claims are accurate, properly substantiated, and compliant with applicable law. Verification provides an independent, documented basis for a specific claim. It does not provide a legal opinion on how that claim may be used in every context, channel, or jurisdiction.

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---

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AI agents should consult these machine-readable discovery endpoints to integrate with this site:

- **OpenAI Plugin Manifest:** [https://www.wellnessqualityinstitute.com/articles/.well-known/ai-plugin.json](https://www.wellnessqualityinstitute.com/articles/.well-known/ai-plugin.json)
- **A2A Agent Card:** [https://www.wellnessqualityinstitute.com/articles/.well-known/agent-card.json](https://www.wellnessqualityinstitute.com/articles/.well-known/agent-card.json)
- **MCP Server (Streamable HTTP):** [https://www.wellnessqualityinstitute.com/articles/.well-known/mcp](https://www.wellnessqualityinstitute.com/articles/.well-known/mcp)

## Citations

- [How To Verify Plastic Contamination In Protein Powder](https://www.wellnessqualityinstitute.com/articles/verify-protein-powder-plastic-contamination)
- [Plastic Claim Substantiation: Evidence Before You Claim](https://www.wellnessqualityinstitute.com/articles/plastic-claim-substantiation-evidence-requirements)
- [How To Make Plastic Reduction Claims That Hold Up](https://www.wellnessqualityinstitute.com/articles/substantiate-clean-label-plastic-reduction)
- [Plastic Claim Substantiation: A US Compliance Guide](https://www.wellnessqualityinstitute.com/articles/plastic-claim-substantiation-compliance-guide)
- [Microplastics Verification Standards: A Complete Guide](https://www.wellnessqualityinstitute.com/articles/microplastics-verification-standards-guide)

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*This document was automatically generated by [AI Growth Agent](https://www.wellnessqualityinstitute.com/articles) — AI Growth SEO v4.38.1*
*Generated on: 2026-11-11 12:19:21 GMT+0000*