Natural and organic are among the most persuasive words on a pet care label, and among the least defined in law. Neither term is settled uniformly across markets, and a claim that reads as harmless marketing in one country can be an unsubstantiated assertion in another. This guide explains what each term actually means to regulators and retailers, how derivation percentages and certifications are meant to be calculated, and how to build a substantiation file that survives a challenge two years after launch.
Why These Two Words Attract So Much Scrutiny
Most label copy describes what a product is: a cleansing mousse, a deodorising spray, a 200 ml pack. Natural and organic describe provenance, and provenance is an assertion about supply chains that a consumer cannot verify. That asymmetry is exactly what consumer-protection law is designed to police, which is why these two words sit closer to the regulated boundary than any other marketing language on the pack.
The risk is not only regulatory. Retail buyers increasingly ask for the derivation calculation and the certification scope before listing a clean-label line, and marketplace platforms remove listings when a claim is challenged by a competitor. The consequence of an unsupported claim is rarely a fine alone; it is a relabel, a delisting and a review history that follows the brand into its next launch.
The practical answer is not to avoid the words. It is to treat them as technical statements with a definition, a calculation and a paper trail - the same discipline you would apply to an active percentage or a pH value.
"Natural" in the EU: No Legal Definition, But a Legal Test
EU law does not provide a single legal definition of natural for cosmetic-type or pet grooming products, and the Cosmetics Regulation (EC) No 1223/2009 - which governs human cosmetics rather than pet products - does not define the term either. What does exist is a general fairness test: under the Unfair Commercial Practices Directive 2005/29/EC, a claim must not mislead the average consumer, and the burden of substantiation sits with the trader making it.
Because the legal term is undefined, the technical standard does the work. ISO 16128-1:2016 sets out definitions for natural and organic cosmetic ingredients, and ISO 16128-2:2017 sets out approaches to calculating indices of natural origin and organic origin. Using the ISO approach gives you a number - a percentage of natural origin by mass - that can be audited, compared across suppliers and disclosed proportionally. It does not certify a product, and it does not create a legal safe harbour, but it converts a vague adjective into a calculation a buyer or a regulator can follow. The standards are technical guidance published by ISO, not a certification scheme.
Where the claim becomes environmental rather than compositional - biodegradable, eco-friendly, planet-positive packaging - the applicable framework shifts again, and the wording has to be read against both consumer-protection rules and the classification and labelling obligations that apply to the mixture, which our UK and EU compliance walkthrough sets out.
"Natural" in the US and the Feed Boundary
The United States has no federal definition of natural for pet grooming products either. Advertising is judged for deception under federal consumer-protection law and state unfair-competition statutes, and the practical test is whether a reasonable consumer would be misled by the claim as presented. A product marketed as natural while containing a synthetic preservative, a synthetic fragrance or a petroleum-derived carrier is the classic failure mode.
The picture changes if the product crosses into feed or drug territory. AAFCO's model regulations, which states adopt in varying form, define natural in relation to feed ingredients and provide for natural claims on feed labels; a dental gel or toothpaste presented as something the animal ingests may be assessed on that basis rather than as a grooming product. A product that makes a therapeutic claim moves into animal drug territory overseen by the FDA's Center for Veterinary Medicine. Deciding which of these three boxes your product sits in is the first step, not a detail for the label designer, and it is why we ask for the intended claims and the intended use on the project brief before formulation begins.
Organic: The Certification Scope Problem
Organic is harder than natural because it is a certification term rather than a calculation. Certification attaches to an agricultural production system and to the operators in the supply chain, not to a finished bottle. An organic-certified ingredient therefore arrives with a certificate for the material and a transaction certificate for the lot; a finished-product organic claim requires that the whole chain - and the manufacturing site - sit inside a recognised programme.
Scope is where brands get caught. The EU organic regime under Regulation (EU) 2018/848 is written around organic production and labelling of agricultural products, including feed, and a pet grooming spray is not an agricultural product. Private cosmetic standards such as COSMOS define organic content for cosmetic-type formulations, but their eligibility criteria are drafted around cosmetic products and their ingredient rules. USDA's National Organic Program certifies products against the USDA organic regulations, and its scope is likewise built around agricultural products. Before printing a seal, confirm in writing that the scheme accepts your product category, your site and your ingredient list.
The table below summarises where the two terms actually stand in the markets most brands target. Note that in every case the usable proof is documentary, and in no case is a self-declaration sufficient.
| Market | Legal status of "natural" | Legal status of "organic" | Proof a buyer will ask for |
|---|---|---|---|
| European Union | No single legal definition; assessed as a misleading-claim risk under Directive 2005/29/EC | Protected as a production and labelling term under Regulation (EU) 2018/848 for agricultural products, which a grooming product is not | ISO 16128 derivation calculation, INCI breakdown, supplier declarations, certification scope letter |
| United States | No federal definition for grooming products; judged for deception in advertising | USDA National Organic Program certification for eligible products; otherwise the term is unprotected but still actionable if misleading | Formula derivation file, ingredient organic certificates, NOP scope confirmation |
| United Kingdom | No statutory definition; CMA guidance on environmental and comparative claims applies to the wording | Retained EU organic regime and UK certification bodies; same scope question applies | Derivation calculation, certifier scope letter, claim substantiation file |
| Canada | No statutory definition for pet grooming; private-label and advertising law applies to misleading claims | Canada Organic Regime for agricultural products; certification required for the term | Ingredient certificates, derivation calculation, bilingual label review |
Source: EUR-Lex Directive 2005/29/EC and Regulation (EU) 2018/848; AAFCO model regulations; USDA National Organic Program; UK CMA green claims guidance; Canada Organic Regime. Scope eligibility must be confirmed per product with the certifier.
Building a Substantiation File That Survives Review
A defensible natural claim is a calculation with a data trail, and the trail has to be assembled before artwork is approved rather than reconstructed after a complaint. The core is an ingredient-by-ingredient derivation table: INCI name, function, percentage in the formula, natural-origin index for that material, and the supplier declaration that supports the index. Multiply through by mass and you have the product-level figure, with the synthetic fraction - preservative, solubiliser, fragrance - visible rather than hidden.
The file should also contain the full INCI list as declared on the label, the batch certificate of analysis for the lots used, the supplier's statement of origin and processing for each natural-claimed material, and any certification documents with their scope statements attached. Keep the version that corresponds to each artwork revision; the file that matters in a dispute is the one that matches the label actually printed.
Two disciplines make the file usable. First, hold the same structure across markets so a single master file can be translated rather than rebuilt. Second, review it whenever a supplier changes a material, because a substitution in a carrier or a preservative can invalidate a percentage without anyone touching the artwork.
- Ingredient-level derivation table with percentages by mass
- Natural-origin index per material, referenced to ISO 16128-1 and -2
- Supplier declarations of origin and processing per natural-claimed material
- Certification documents with scope statements, not just logos
- COA for each lot used in the marketed batch
- Version control linking each file to a specific artwork revision
Wording That Holds and Wording That Fails
Most claim failures are caused by the gap between what the formulator measured and what the copywriter wrote. A formula that is 62 percent naturally derived becomes a headline of natural, which a challenger reads as effectively total. The fix is proportionality: state the number, or state the qualifier, and keep the front of pack consistent with the back.
The table below maps common intentions onto wording that a reviewer is likely to accept and wording that invites a challenge, with the evidence each version needs. The pattern is consistent - specific, measured, qualified language survives; absolutes and emotional superlatives do not. Consumer demand for the positioning is genuine, as our natural ingredients trends guide sets out, but demand is not substantiation; the same discipline governs fragrance and allergen labelling and sensitive-skin claim wording.
| Intended meaning | Wording that invites challenge | Defensible wording | Evidence to hold on file |
|---|---|---|---|
| High natural content | 100% natural, all natural | Made with 95% naturally derived ingredients | Derivation table by mass, ISO 16128 indices, supplier declarations |
| Contains organic material | Organic formula, organic pet care | Contains certified organic aloe vera (certifier, certificate number) | Ingredient certificate plus lot transaction certificate |
| Mild, low-irritation position | Chemical-free, hypoallergenic | Formulated without added fragrance and dyes | Full INCI, fragrance declaration, formulation record |
| Environmental position | Eco-friendly, sustainable, green | Bottle made from 50% post-consumer recycled plastic | Packaging specification and supplier statement per production run |
| Preservative position | Preservative-free | Preserved with a naturally derived system | Preservative system disclosure and challenge test result |
Source: EUR-Lex Directive 2005/29/EC on unfair commercial practices; ISO 16128-1:2016 and ISO 16128-2:2017; UK CMA green claims guidance.
Where Enforcement Is Heading
The direction of travel is toward more specificity, not less. Directive (EU) 2024/825 amends the Unfair Commercial Practices Directive and the Consumer Rights Directive to address greenwashing, and it restricts generic environmental claims where excellent performance cannot be demonstrated, together with sustainability labels that are not based on a certification scheme or established by public authorities. Member states are required to transpose it, with application expected from 2026. A separate proposal on substantiation and communication of explicit environmental claims has been under negotiation and would add a verification step if adopted.
In the United Kingdom, the Competition and Markets Authority's green claims guidance already applies the same logic: the claim must be truthful, clear, complete and supported by evidence the business holds. In practice, brands selling into both markets should assume that any adjective describing provenance must be traceable to a document, and that a generic seal without a certification behind it is a liability rather than an asset.
None of this argues against clean-label positioning. It argues for building the file first, choosing the words second, and letting the marketing team write only what the technical team can prove.
Frequently Asked Questions
Is there a legal definition of natural for pet products?
Not in the EU or the United States. In the EU, a natural claim is assessed as a possible misleading commercial practice under Directive 2005/29/EC, and the trader must be able to substantiate it. In the US there is no federal definition for grooming products, so advertising deception rules apply. The technical reference that most suppliers and buyers use instead is ISO 16128-1 and -2, which define natural and organic ingredients and how to calculate origin indices.
Can I say 100% natural if every ingredient is plant-derived?
Only if the calculation genuinely reaches 100 percent, which is rare once water, a preservative system and a pH adjuster are counted. Mineral-derived and water fractions are handled differently under ISO 16128, and many formulas land well below the absolute. A qualified statement with a real number - made with 95% naturally derived ingredients - is both more credible to a buyer and far easier to defend than an absolute.
Do I need organic certification to use the word organic?
In practice yes, if the claim attaches to the product or the formula. Certification programmes are built around production systems and supply-chain operators, so a finished-product organic claim requires that the chain and the site sit inside a recognised scheme. If only one ingredient is certified organic, say so and name the certifier - that is a claim about the ingredient and needs the ingredient's certificate plus the lot transaction certificate, not a finished-product seal.
Does ISO 16128 certify a product as natural?
No. ISO 16128-1 provides definitions and ISO 16128-2 provides calculation approaches for indices of natural and organic origin. It is a measurement framework, not a certification scheme, and it creates no legal safe harbour in any market. Its value is that it makes your claim auditable and comparable: a buyer can check the calculation, and a challenge can be answered with a number rather than an assertion.
How long must I keep claim substantiation on file?
For the market life of the product and a defined period afterwards, so that a claim can still be defended if a product is challenged after it has been discontinued. Keep the version of the file that matches each printed artwork revision, because a substitution in a carrier or preservative can invalidate a percentage without any artwork change. Practically, version control matters more than retention length.
Who provides the documentation for a natural claim?
The manufacturer assembles the formula-level file: INCI list, derivation table, supplier declarations, stability and batch COA. Certification is the brand owner's programme, because the certificate and the seal belong to the brand and the certifier contracts with the party placing the product on the market. We supply the technical inputs and the scope information a certifier asks for, but certification itself is a separate engagement with its own cost and audit cycle.
Conclusion
Natural and organic are defensible claims only when the wording, the calculation and the market's rules line up. Treat natural as a measured statement supported by a derivation table built on ISO 16128 definitions, and treat organic as a certified status that requires a scheme whose scope actually covers your product and your site. Qualify the claim to the number you can prove, keep the file versioned against each printed artwork, and review it whenever a supplier changes a material. The brands that win on clean-label positioning are not the ones with the boldest adjective; they are the ones whose paperwork matches the pack.
