# How To Substantiate Plastic-Free Claims Without Greenwashing

> Avoid greenwashing with The Wellness Quality Institute's 5-step plastic-free claim verification. Turn lab data into defensible claims today.

**Published:** 2026-10-12 | **Updated:** 2026-10-31 | **Author:** mihir
**URL:** https://www.wellnessqualityinstitute.com/articles/plastic-free-claims-without-greenwashing
**Type:** post

**Categories:** Certification

![How To Substantiate Plastic-Free Claims Without Greenwashing](https://wellnessquality.sites.aigrowthagent.co/wp-content/uploads/sites/93/2026/10/1791727822971-6ce9392c5c1c-1024x572.webp)

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## Content

*Written by: Scott Steveson, Specialist, Wellness Quality Institute*

## Key Takeaways

- A plastic-free claim is a verifiable statement about a defined scope, supported by a traceable evidence chain.
- Scope creep drives most greenwashing risk. A claim must name what it covers and what it excludes across product, packaging, shipping, and inputs.
- Analytical testing cannot prove absolute absence of plastic across every particle size, polymer type, and production lot, so no product can be certified plastic-free.
- The wording must be the narrowest claim the evidence supports. A claim-to-evidence matrix keeps the claim auditable as products and suppliers change.
- The Wellness Quality Institute provides independent review of third-party laboratory data against defined standards so brands can turn lab results into defensible claims.

[See how your current lab data could support a defensible claim with Wellness Quality Institute review.](https://www.wellnessqualityinstitute.com/?utm_term=plastic-free-claims-without-greenwashing&utm_campaign=ai_growth_agent)

## How To Substantiate Plastic-Free Claims Without Greenwashing Risk: A 5-Step Process

Plastic-free claim substantiation follows a defined sequence. Each step builds on the last. Skipping any step turns defensible data into greenwashing risk. Organizations may choose to follow this sequence as an optional example.

1. Define the claim scope precisely.
2. Audit hidden plastics at component level.
3. Assemble the evidence package.
4. Map evidence to claim wording.
5. Maintain the claim-to-evidence matrix and change controls.

## Step 1: Define The Claim Scope Precisely

Every plastic-free claim starts with clear boundaries. A claim must name what it covers and what it excludes. Relevant scope boundaries include the product itself, primary packaging (the container touching the product), secondary packaging (outer boxes or sleeves), shipping materials, and supply chain inputs.

The wording distinctions that shape legal exposure are:

- **“Plastic-free”** is an absolute claim about the identified scope. Under the FTC Green Guides’ free-of framework at 16 CFR 260.9, regulators read this as an all-or-nothing representation. A product that is “mostly plastic-free” does not substantiate an unqualified absolute claim.
- **“No Intentionally Added Plastic”** is a narrower claim about intentional formulation and material selection. It addresses what was deliberately put into the product or package and does not speak to trace or background presence.
- **“Plastic-Free Primary Packaging”** is a component-level claim that names the covered component. It excludes secondary packaging, labels, and closures unless those are separately substantiated.

The FTC Green Guides require that free-of claims be clearly and prominently qualified when qualification is necessary to avoid deception. A qualification should identify the relevant product, package, or component so consumers do not assume the entire product system is plastic-free.

## No Intentionally Added Plastic And Plastic-Free: What The Evidence Must Show

This wording choice controls how much proof a brand needs. [Under 16 CFR 260.9, a free-of claim can be deceptive even when literally true](https://legalclarity.org/environmental-marketing-claims-what-the-ftc-requires) if the product contains a substitute with similar environmental risk or if the named substance was never associated with the category. [The Guides also recognize a limited trace-presence principle](https://legalclarity.org/environmental-marketing-claims-what-the-ftc-requires). A free-of claim can remain truthful when the substance appears only at background or trace-contaminant levels, was not intentionally added, and does not cause the harm consumers usually associate with it.

As noted in Step 1, **“No Intentionally Added Plastic”** focuses on deliberate use. Supplier declarations, bills of materials, and formulation records support this wording.

**“Plastic-Free”** suggests absence across the entire defined scope. No laboratory can currently prove that level of absence across every particle size, polymer type, and production lot. [Analytical non-detection shows only that no target polymers were detected within the method’s limits. Supplier and formulation records address intentional use. Laboratory testing addresses detectable presence within defined method limits.](https://legalclarity.org/claims-substantiation-evidence-standards-and-enforcement)

![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.**

## Step 2: The Hidden-Plastics Audit

Hidden components often create the biggest claim risk. Coatings, adhesives, laminates, inks, closures, and liners act as primary risk points for plastic-free claims. Paper and bio-based materials also require scrutiny, because marketing language about “natural” or “plant-based” does not guarantee plastic-free content.

Many teams assume bio-based or compostable materials qualify automatically. Bio-based plastics like PLA (polylactic acid, a plant-derived polymer) are still plastics. Compostable materials can include synthetic binders or coatings. A component-level audit replaces broad assumptions with documented checks.

[The FTC Green Guides’ free-of framework supports a component-level audit](https://www.ftc.gov/legal-library/browse/rules/green-guides) that covers the defined claim scope and reviews substitute materials that may create similar environmental concerns.

## Step 3: Assemble The Evidence Package

A defensible evidence package for plastic-free claim substantiation combines several types of proof.

- Bill of materials, meaning a complete list of every ingredient, component, coating, adhesive, and liner within the defined claim scope.
- Supplier declarations with change-notification clauses, which are written statements identifying covered materials and specifications and committing to notify the brand of changes that could affect the claim.
- Independent technical verification of the defined claim scope, bills of materials, supplier declarations, test methods, results, and consistency between evidence and final wording.
- Analytical testing data from a qualified independent laboratory.

Analytical testing has clear technical limits. [The California State Water Board defines microplastics in drinking water as solid polymeric material with particles having at least three dimensions greater than 1 nanometer and less than 5,000 micrometers.](https://www.waterboards.ca.gov/drinking_water/certlic/drinkingwater/microplastics.html) The best validated methods begin well above the nanometer scale. SWB-MP1-rev1 uses infrared spectroscopy and covers particles greater than 50 µm through 5,000 µm. SWB-MP2-rev1 uses Raman spectroscopy and covers particles greater than 20 µm through 5,000 µm. The 1–20 µm fraction is not validated under either method, and everything below that range currently sits beyond reliable commercial measurement. Organizations may choose to reference these methods as an example of technical limits.

![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.**

This technical ceiling defines the whole category. It explains why no product can be certified plastic-free and why the honest claim focuses on a reviewed scope instead of an absolute state.

## Step 4: The Claim-Wording Ladder

Claim wording should match the narrowest statement the evidence supports. The same evidence can support a strong, a qualified, or a narrow claim, and that choice sets legal exposure. The table below shows how weaker evidence supports only narrower wording. Supplier declarations alone support a component-level “no intentionally added plastic” claim, while independent verification unlocks a verified pathway claim.

| Evidence Held | Strong Claim | Qualified Claim | Narrow Claim |
| --- | --- | --- | --- |
| Supplier declarations + BOM showing no intentionally added plastic; no analytical testing | Not supported | “No intentionally added plastic in primary packaging” | “Primary packaging contains no intentionally added plastic” |
| Analytical testing showing no reportable target polymers detected above 50 µm in one production lot | Not supported | “No reportable target polymers detected above 50 µm in tested lot” | “Tested lot showed no reportable target polymers above 50 µm using infrared spectroscopy” |
| Independent verification of dataset against defined standard | “WQI Plastic-Free Pathway Verified” (for Standard Met products, within registered scope) | “Dataset reviewed and accepted under the Wellness Quality Institute’s Plastic-Free Pathway Verification standard” | “Reviewed against the Wellness Quality Institute’s defined review criteria; verification applies only to reviewed scope” |

Approved phrasing examples:

- Use: “No intentionally added plastic in primary packaging.” Avoid an unqualified “Plastic-free” claim.
- Use: “No reportable target polymers detected above 50 µm in tested lot.” Avoid the broader “Microplastic-free” wording.
- Use: “WQI Plastic-Free Pathway Verified.” Keep the word “Pathway” in the claim.

[Map your current evidence to clear, compliant claim wording with Wellness Quality Institute support.](https://www.wellnessqualityinstitute.com/?utm_term=plastic-free-claims-without-greenwashing&utm_campaign=ai_growth_agent)

## Step 5: The Claim-To-Evidence Matrix And Change Controls

The claim-to-evidence matrix turns a claim into something that can be audited. It records the claim, its exact wording, the proof, the source, the date, and who signed it off. Brands should keep an evidence file per claim and re-check it whenever the product or its documentation changes.

The technical file contains:

- The exact claim wording and its defined scope.
- The evidence supporting each element of the claim.
- The source of each piece of evidence (supplier declaration, lab report, BOM).
- The date of each piece of evidence.
- The name of the person who approved the claim.

The claim must be reassessed when any of the following occur:

- Supplier change.
- Formulation change.
- Packaging change.
- New production lot.

A single strong test result applies only to the reviewed product and dataset. Stretching that result across a company or product line turns credible data into greenwashing. Verification applies only to the reviewed product, dataset, tested particle-size range, polymer panel, and production period.

## Regulatory Alignment: Key Frameworks For Plastic-Free Claims

**FTC Green Guides (16 CFR Part 260):** The free-of framework at 16 CFR 260.9 requires that a product contain no amount of the named substance, contain no substitute presenting similar environmental harm, and avoid implying a distinctive benefit for eliminating a substance never historically associated with the product category. Substantiation must exist before the claim and generally relies on competent and reliable scientific evidence. The current version dates to 2012. The FTC opened a formal review in December 2022, and final revisions were still pending as of spring 2026.

**ISO 14021:2026:** [Published 23 June 2026, this third edition cancels and replaces ISO 14021:2016.](https://standards.iteh.ai/catalog/standards/iso/4fc91680-18c5-4571-959d-3d7a591d8cd8/iso-14021-2026) It includes [a dedicated Clause 8.6 for “… free” claims, with description, limitations, and assessment method](https://standards.iteh.ai/catalog/standards/iso/4fc91680-18c5-4571-959d-3d7a591d8cd8/iso-14021-2026). [Clause 6 requires self-declared environmental claims to be part of a documented environmental statement programme, with stronger documentation requirements](https://standards.iteh.ai/catalog/standards/iso/4fc91680-18c5-4571-959d-3d7a591d8cd8/iso-14021-2026). [The standard defines “greenwashing” as an unsubstantiated, misleading or irrelevant environmental statement.](https://standards.iteh.ai/catalog/standards/iso/4fc91680-18c5-4571-959d-3d7a591d8cd8/iso-14021-2026) Organizations may choose to align with this standard when structuring claim documentation.

**California State Water Board Methods:** [SWB-MP1-rev1 and SWB-MP2-rev1 define current reference methods for microplastics in drinking water.](https://www.waterboards.ca.gov/drinking_water/certlic/drinkingwater/microplastics.html) The 1–20 µm fraction is not validated under either method. These methods illustrate what analytical testing can and cannot prove. They act as a technical benchmark rather than a geographic boundary, and brands across the United States may reference them as a benchmark. Organizations may choose to reference these methods as an example.

**EU Green Claims Directive Status:** As of 2026, the proposal remains blocked in Council after the Commission announced its intention to withdraw on 20 June 2025. The separate Empowering Consumers Directive (EU) 2024/825 applies from 27 September 2026 and [prohibits generic environmental claims and whole-product claims when only one component qualifies](https://madeineurope.org/guides/environmental-claims). These frameworks help brands planning for international markets, but they do not create mandatory obligations for US-only companies.

## How To Phrase Claims When Only The Primary Container Qualifies

Clear qualifications keep component-level claims compliant. The qualification must be prominent and adjacent to the claim, not buried in fine print. [Under the FTC Green Guides, a qualification should identify the relevant product, package, or component](https://www.ftc.gov/legal-library/browse/rules/green-guides) so consumers do not assume the entire product system is plastic-free.

Compliant narrow wording: “Primary packaging contains no intentionally added plastic. Secondary packaging and closures not included in this claim.”

Non-compliant wording: “Plastic-free packaging” when only the primary container qualifies.

## How The Wellness Quality Institute’s Plastic-Free Pathway Verification Converts Lab Data Into A Defensible Claim

The Wellness Quality Institute (WQI) is an independent verification body that reviews a company’s existing third-party laboratory data against WQI-CS-01, a standard aligned with the California State Water Board’s drinking-water microplastics reference framework. WQI does not run laboratory tests. It reviews data generated by qualified laboratories. California did not create, approve, authorize, or endorse WQI or its standard.

![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.**

The review assesses:

- Laboratory qualification, analytical method, product matrix, and sampling approach.
- Tested particle-size range, target polymer panel, and reporting limits.
- Blank results, spike recoveries, replicates, and chain of custody.
- Data recency, product scope, and production or sampling period.

A Standard Met outcome provides a verification decision, a scope-locked license to use the WQI logo, a public registry listing, and approved claim language tied to the specific reviewed evidence. A Standard Not Met outcome remains private. It is not described as a failed product. It can reflect insufficient data or an unsupported method rather than a quality problem, and the company may resubmit.

Scope lock keeps the claim tied to the reviewed evidence. Verification applies only to the reviewed product, dataset, tested particle-size range, polymer panel, and production period. No company-wide or product-line claim may extend from a single dataset. 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. Independent laboratory testing is arranged and billed separately. Payment of the assessment fee does not guarantee a verification decision.

*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.*

[Get your existing lab data reviewed against WQI-CS-01 and see what claims it can support.](https://www.wellnessqualityinstitute.com/?utm_term=plastic-free-claims-without-greenwashing&utm_campaign=ai_growth_agent)

## Frequently Asked Questions

The questions below address common concerns brands raise when they start working with plastic-free and no-intentionally-added-plastic claims.

### What Evidence Supports A Plastic-Free Claim?

A defensible evidence package combines component-level technical documentation, supplier records with change-notification clauses, laboratory analyses, and independent expert or verification review. [The FTC Green Guides do not prescribe a single mandatory evidence type](https://legalclarity.org/ftc-green-guides-rules-for-environmental-marketing-claims). Substantiation should match the claim’s defined scope and meaning. The package must collectively support every reasonable interpretation a consumer could draw from the wording, not only the narrow reading the brand intends. Organizations may choose to follow this approach as an optional example.

### What Is The Difference Between “No Intentionally Added Plastic” And “Plastic-Free”?

“No intentionally added plastic” is supported by supplier declarations, bills of materials, and formulation records. It addresses what was deliberately put into a product or package and does not assert anything about trace or background presence. “Plastic-free” is an absolute claim that suggests evidence of absence across the entire defined scope. No laboratory can currently provide that level of evidence across every particle size, polymer type, and production lot. The evidentiary burden for “plastic-free” is substantially higher, and in most cases the available evidence supports only the narrower “no intentionally added plastic” wording.

### Is Bio-Based Or Compostable Automatically Plastic-Free?

No. Bio-based plastics such as PLA (polylactic acid) are still plastics. They come from plant sources but remain synthetic polymers. Compostable materials may contain synthetic binders, coatings, or processing aids. A component-level audit of every material in the defined claim scope is required before any plastic-free claim can be made, regardless of how the material is marketed by a supplier.

### What Is A Claim-To-Evidence Matrix, And Why Does It Matter?

A claim-to-evidence matrix is a document that records the exact claim wording, the evidence supporting each element of that claim, the source of each piece of evidence, the date it was generated, and the name of the person who approved the claim. This document makes a claim auditable, meaning a retailer, legal team, or regulator can trace every word of the claim back to specific proof. The matrix must be updated every time the product, packaging, formulation, or supplier changes. A claim that was defensible at launch can become indefensible after a packaging update if the matrix is not maintained.

### What Can A Brand Say If Only Some Components Qualify?

Brands should name the qualifying component explicitly and exclude what is not covered. Compliant wording: “Primary packaging contains no intentionally added plastic. Secondary packaging and closures not included in this claim.” The qualification must appear prominently and adjacent to the claim, not in fine print or on a separate page. Under the FTC Green Guides, a qualification buried away from the claim does not prevent the unqualified claim from being deceptive. A reasonable consumer reading the claim and the qualification together should understand exactly what is and is not covered.

## Conclusion: Why Defensible Plastic-Free Claims Create Real Value

A plastic-free claim is a verifiable statement about a defined scope, supported by a traceable evidence chain. The wording should reflect the narrowest claim the evidence supports. The claim-to-evidence matrix keeps that wording tied to proof over time. Independent review converts existing lab data into a claim a brand can defend with regulators, retailers, and consumers.

Independent verification, as described above, helps brands that already invested in testing understand what their data can truly support. For these teams, review fills the gap between a lab report and a durable claim.

For more on the evidence standards behind plastic-free claims, see [Plastic Claim Substantiation: The Evidence Checklist](https://www.wellnessqualityinstitute.com/articles/plastic-claim-substantiation-checklist/?utm_term=plastic-free-claims-without-greenwashing&utm_campaign=ai_growth_agent), [Microplastics Claim Verification: What Lab Data Can Prove](https://www.wellnessqualityinstitute.com/articles/microplastics-claim-verification-data/?utm_term=plastic-free-claims-without-greenwashing&utm_campaign=ai_growth_agent), and [Plastic Claim Substantiation: Evidence Thresholds Under FTC](https://www.wellnessqualityinstitute.com/articles/plastic-claim-substantiation-requirements/?utm_term=plastic-free-claims-without-greenwashing&utm_campaign=ai_growth_agent).

[Turn your existing lab reports into clear, supportable claims with Wellness Quality Institute Plastic-Free Pathway Verification.](https://www.wellnessqualityinstitute.com/?utm_term=plastic-free-claims-without-greenwashing&utm_campaign=ai_growth_agent)

## Read Next

- [How to Avoid Unsubstantiated Clean Label Plastic Claims](https://www.wellnessqualityinstitute.com/articles/avoiding-unsubstantiated-clean-label-claims/?utm_term=plastic-free-claims-without-greenwashing&utm_campaign=ai_growth_agent)
- [Turn Lab Data Into Verified Plastic-Free Claims: 6 Steps](https://www.wellnessqualityinstitute.com/articles/avoid-greenwashing-plastic-reduction/?utm_term=plastic-free-claims-without-greenwashing&utm_campaign=ai_growth_agent)
- [Plastic Claim Substantiation: The Evidence Checklist](https://www.wellnessqualityinstitute.com/articles/plastic-claim-substantiation-checklist/?utm_term=plastic-free-claims-without-greenwashing&utm_campaign=ai_growth_agent)
- [How To Substantiate Plastic Reduction Claims: A 5-Step Guide](https://www.wellnessqualityinstitute.com/articles/how-to-substantiate-plastic-claims/?utm_term=plastic-free-claims-without-greenwashing&utm_campaign=ai_growth_agent)
- [How to Verify Plastic Reduction Claims: A 5-Step Audit](https://www.wellnessqualityinstitute.com/articles/verify-plastic-reduction-claims/?utm_term=plastic-free-claims-without-greenwashing&utm_campaign=ai_growth_agent)

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## 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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