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Research notes

Cori Dog Research Note · version 1.1

Evaluating evidence behind dog-grooming claims

Organization author · Cori DogClaim-to-evidence matrix
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The short answer

How should a dog-grooming claim be classified, matched to its evidence unit and kept separate from medicinal or biocidal implications?

A grooming claim needs three separate checks: what a reasonable reader is likely to understand, which regulatory category that presentation may engage, and whether evidence directly supports the promised outcome. Evidence does not erase classification rules, and a permissible product category does not prove that a claim is true.

Three questions to ask about a grooming claim

You do not need to read a research paper before every purchase. Start by making the promise specific enough to check. 'Gentle' on its own leaves much more unanswered than it appears to.

  1. 1. What exactly is being promised?

    Copy the words from the label, then say what you understood them to mean. Does 'pH-balanced' describe the product's measured pH, or did you read it as a promise of comfort? Those are different claims. Ask the manufacturer to define the result the wording refers to.

  2. 2. Was this product tested for that result?

    Ask about the complete marketed formula, the dogs involved, how it was used and what was measured. 'Tested' without those details leaves the main question open. A study of an ingredient, or a measurement of the bottle's contents, may not test the effect you thought was promised.

  3. 3. What does the evidence leave unanswered?

    Look for a comparison, the length of the study, the number of dogs and how unwanted effects were recorded. Ask for a public summary or source you can inspect. If there is no answer, record the claim as unverified; that is different from proving that the product is harmful or ineffective.

The claim table below helps you unpack common label phrases. It is a guide to questions, not a product ranking. A claim about itch or treatment should not become a reason to change prescribed care.

Why this matters

Words such as gentle, hypoallergenic, pH-balanced and anti-itch can sound precise while leaving the tested product, comparator, population, endpoint and duration undefined. Images, product names, testimonials and linked research can also shape the impression.

A useful review follows the claim from wording to evidence unit. Ingredient mechanism can motivate a hypothesis; finished-product performance requires the finished product; canine health outcomes require an appropriate canine population and design.

Four takeaways

01

Review the likely impression, not the internal label

Express words, implied meaning, imagery, product names, testimonials and linked studies can all affect what consumers understand. Calling a product cosmetic internally does not neutralise a medicinal presentation.

Sources 2, 7, 5

02

Match evidence to the claimed unit

An ingredient study can support a mechanism hypothesis. A finished-product claim needs evidence on the finished product, and a canine outcome needs an appropriate canine population and endpoint.

Sources 9, 10, 7

03

Classification and substantiation are different checks

A claim can require evidence and still raise medicinal or biocidal classification questions. Conversely, avoiding medicinal wording does not make an objective performance claim true.

Sources 2, 3, 4, 5, 6

04

Good reporting improves inspection, not certainty by itself

ARRIVE and VICH GL9 can improve reporting or conduct. They cannot remove bias, repair a poor comparator, enlarge a small sample or make an indirect endpoint match the public claim.

Sources 9, 10

Key terms, in plain language

Express claim
A statement made directly in words, such as reduces itch or cleans better than the leading shampoo.
Implied claim
A message a reasonable audience may take from the full presentation even when the exact words are not stated.
Comparator
The product, routine, placebo, baseline or control against which an outcome is judged.
Endpoint
The prespecified result measured in a study, such as soil removal, combing force, skin score or owner-reported itch.
Directness
How closely the tested product, population, exposure and endpoint match the public claim.

Worked example

Example: four claims on one fictional shampoo

A fictional label says pH-balanced, gentle, hypoallergenic and anti-itch, beside a photograph of a dog with visibly inflamed skin.

  1. 01

    pH-balanced needs a defined finished-product range, method and reason that the range matters. Gentle needs a stated comparator and relevant tolerance or barrier endpoint. Hypoallergenic needs a precise meaning, tested population, exposure and adverse-event reporting.

  2. 02

    Anti-itch and the inflamed-skin image can create a health-treatment impression. In the UK, disclaimers or softer phrases such as may help do not automatically remove medicinal presentation; the exact advertisement and product require specialist review.

Evidence review cannot issue a legal classification or prove efficacy from the label. It identifies the claims, missing definitions and evidence each conclusion would need.

Sources 2, 7, 5, 6

Deeper analysis

What the evidence means in practice

01

Question one: what impression does the whole presentation create?

A claim is not limited to the largest words on the front label. Product names, images, before-and-after framing, testimonials, linked studies, footnotes and surrounding editorial content can shape what a reasonable reader understands.

This is why a soft qualifier or disclaimer cannot be assessed alone. UK VMD guidance states that phrases such as may help and separate disclaimers do not automatically neutralise medicinal presentation, while research links and third-party material can form part of advertising context.

Sources 2, 7, 6

02

Question two: what classification might that impression engage?

A statement about cleansing or cosmetic appearance raises different questions from a statement about treating, preventing or modifying a health condition. Antimicrobial language can also raise a separate biocidal question depending on product and use.

Classification is jurisdiction-specific and fact-specific. The EU veterinary-medicines and biocidal frameworks, UK VMD guidance and US FDA guidance should not be blended into one global rule. A specialist needs the exact product, formula, claims and market.

Sources 2, 3, 4, 1

03

Question three: does the evidence directly support the promised outcome?

Evidence becomes more direct as it moves from ingredient mechanism to prototype performance, marketed finished-product performance and then relevant in-use outcomes in the claimed population. Each step can answer a different question; no step automatically inherits the conclusion of the next.

For example, an ingredient paper may explain why a conditioner could reduce fibre friction. A claim that a marketed dog shampoo makes combing easier needs a reproducible test of that product, with a comparator and defined endpoint. A claim about itch or disease needs an appropriate veterinary design and may also alter classification.

Sources 9, 10, 7, 5

04

Work each familiar adjective into a testable question

Gentle is incomplete until the comparison, exposure and endpoint are stated. pH-balanced identifies neither the measured range nor why that range predicts an outcome. Hypoallergenic needs a defined meaning, relevant population and adverse-event evidence. Anti-itch creates a direct health-outcome and classification question.

This translation is useful because it reveals whether a study could answer the claim. It also prevents a vague adjective from receiving broader support than the evidence provides.

Sources 2, 7, 5, 6

05

Reporting quality and certainty are not the same

ARRIVE can make animal studies easier to inspect, and VICH GL9 can support integrity in veterinary clinical studies. Neither framework makes a small sample representative, creates a missing comparator or turns a surrogate endpoint into the claimed outcome.

A reviewer should still examine allocation, blinding, attrition, missing data, adverse events, effect size, uncertainty, conflicts and directness. Clear reporting exposes these features; it does not decide them.

Sources 9, 10

Practical evidence tool

Claim-to-evidence matrix

Start with the exact wording, then ask which evidence unit could support the impression it creates. This is a question map—not a product rating, compliance opinion or safety score.

Download CSVDownload JSON

Gentle or mild

Link to row

Example wording: gentle · mild · non-irritating

What it can suggest
Only that the finished product is being positioned for mild cleansing or tolerance. Without a definition, endpoint and comparator, it remains an adjective.
Evidence to request
  • An exact operational definition, relevant endpoint and a defined comparator when the wording is comparative.
  • Finished marketed-formula testing at the stated dilution, amount, contact time and rinsing conditions.
  • Canine-appropriate tolerance evidence with transparent uncertainty and adverse-event reporting.
What it cannot establish
  • Gentleness from one ingredient name or function record.
  • Non-irritation, universal safety, or suitability for sensitive, allergic or atopic dogs.
Sources and their limits (4)
  1. Cori Dog research note — Evaluating grooming claims — Maps objective wording to the evidence unit that must support it.Limit: Structured evidence map, not a legal opinion, product assessment or meta-analysis.
  2. Cori Dog research note — Reading surfactant blends — Separates a surfactant name from finished-system mildness and tolerance.Limit: Narrative synthesis of heterogeneous evidence units; it does not establish canine safety or rank ingredients.
  3. FTC Policy Statement Regarding Advertising Substantiation — Provides objective-claim substantiation context.Limit: United States policy; the evidence required depends on the exact claim and this source is not a product verdict.
  4. Turkoglu et al. — Irritation potential of surfactant mixtures — Supports considering mixture concentration and application conditions.Limit: Small human patch study; it cannot establish canine safety, tolerance or a finished dog-shampoo outcome.

Hypoallergenic

Link to row

Example wording: hypoallergenic · allergy-friendly · for allergy-prone dogs

What it can suggest
The seller intends a reduced-allergy or tolerance message; the word alone does not identify what was excluded, measured, compared or in which population.
Evidence to request
  • A precise scope distinguishing an ingredient-exclusion statement from an observed finished-product outcome.
  • A relevant canine population, endpoint, marketed formula, comparator and conditions of use.
  • Transparent methods, uncertainty, attrition and adverse-event reporting.
What it cannot establish
  • That allergy, sensitisation or an individual reaction cannot occur.
  • Suitability for every dog, or proof from an ingredient's presence or absence.
Sources and their limits (4)
  1. Cori Dog research note — Evaluating grooming claims — Requires population and endpoint to match the public claim.Limit: Structured evidence map, not a legal opinion, product assessment or meta-analysis.
  2. FTC Policy Statement Regarding Advertising Substantiation — Provides objective-claim substantiation context.Limit: United States policy; the evidence required depends on the exact claim and this source is not a product verdict.
  3. ARRIVE Guidelines 2.0 — Provides animal-study reporting context.Limit: A reporting checklist does not remove bias, correct an unsuitable design or make a product claim true.
  4. VICH GL9 Good Clinical Practice — Provides veterinary clinical-study conduct context.Limit: Following a conduct guideline does not by itself establish efficacy, safety or claim substantiation.

Natural

Link to row

Example wording: natural · naturally derived · plant based

What it can suggest
A defined statement about ingredient origin or processing, but only when the definition and the scope of the statement are documented.
Evidence to request
  • An explicit definition and traceable identity, source and processing records for everything included in the claim.
  • Separate finished-product evidence for any implied safety, tolerance, environmental or performance benefit.
What it cannot establish
  • Safety, gentleness, non-toxicity, purity, efficacy, environmental benefit or canine suitability.
  • A risk ranking between natural and synthetic materials.
Sources and their limits (3)
  1. Cori Dog research note — Evaluating grooming claims — Separates the exact factual impression from implied benefits.Limit: Structured evidence map, not a legal opinion, product assessment or meta-analysis.
  2. European Commission CosIng database — Provides identity and reported-function terminology, not origin or safety proof.Limit: Informative and non-binding; it does not verify natural origin, approval, safety or canine suitability.
  3. FTC Policy Statement Regarding Advertising Substantiation — Provides substantiation context for objective origin or benefit claims.Limit: United States policy; the evidence required depends on the exact claim and this source is not a product verdict.

pH-balanced

Link to row

Example wording: pH-balanced · balanced for dogs · matches canine skin pH

What it can suggest
That the maker may have a finished-product pH specification or control target; only an actual finished-product measurement can support that narrow point.
Evidence to request
  • The finished-product pH range, measurement method and calibration procedure.
  • Whether the product was measured as supplied or at the instructed dilution, with batch, control and stability context.
  • Finished-product canine evidence for any implied mildness, tolerance or compatibility claim.
What it cannot establish
  • One ideal canine pH or correspondence with every dog's skin.
  • Mildness, safety, tolerance, efficacy, compatibility or suitability.
  • Finished pH from the presence of Citric Acid or another pH-related ingredient.
Sources and their limits (3)
  1. Cori Dog research note — Measuring canine skin — Explains measurement variation and why one universal target is unsupported.Limit: Targeted evidence map with heterogeneous methods; it supplies neither a universal target nor product-compatibility rule.
  2. Schlake et al. — Physiological factors and canine skin pH — Supports variation by age and anatomical location in healthy dogs.Limit: Prospective study of 77 healthy dogs; it does not establish an ideal shampoo pH, compatibility or product safety.
  3. Peña-Corona et al. — Commercial nonmedicated dog shampoos — Shows measured pH variation among sampled finished shampoos.Limit: Descriptive Mexico City sample; its measured range is not a universal specification, compatibility test or recommendation.

Health, medicinal or harmful-organism-control wording

Link to row

Example wording: treats · prevents · relieves · heals · anti-itch · antibacterial · antifungal

What it can suggest
Words, imagery or context may communicate treatment, prevention, relief, disease-related or harmful-organism-control outcomes beyond ordinary cleansing. This raises classification and substantiation questions, not a determination.
Evidence to request
  • The exact wording, imagery, intended use, market, product presentation and surrounding context.
  • Jurisdiction-specific professional review of the complete presentation.
  • Appropriately designed veterinary evidence matching the marketed product, population, endpoint and conditions of use.
What it cannot establish
  • Legal or regulatory classification from one word viewed in isolation.
  • Diagnosis, therapeutic benefit, safe self-treatment, efficacy or suitability for an individual dog.
Sources and their limits (6)
  1. Cori Dog research note — Evaluating grooming claims — Maps wording, implied meaning and context without issuing a classification opinion.Limit: Structured evidence map, not a legal opinion, product assessment or meta-analysis.
  2. FDA CPG Sec. 653.100 — Animal Grooming Aids — Provides United States intended-use and grooming-aid context.Limit: United States-specific, non-binding guidance; it is not a universal classification rule or legal opinion.
  3. UK VMD — Advertising non-medicinal veterinary products — Provides United Kingdom context for implied medicinal wording.Limit: Application depends on the exact words and context; it is not a complete multi-market legal opinion.
  4. Regulation (EU) 2019/6 — Veterinary medicinal products — Provides the European Union veterinary-medicines framework.Limit: Classification is fact-, function- and presentation-specific; this matrix does not apply the law to a product.
  5. Regulation (EU) No 528/2012 — Biocidal products — Provides harmful-organism-control context in the European Union.Limit: Applicability depends on intended function and presentation; this matrix makes no classification determination.
  6. VICH GL9 Good Clinical Practice — Provides veterinary clinical-study conduct context for outcome evidence.Limit: Following a conduct guideline does not by itself establish efficacy, safety or claim substantiation.

Companion question map

Format and exposure map

“Rinse-off,” “leave-on,” “wipe” and “balm” describe use patterns. They change the questions to ask about amount, contact, residue, packaging and evidence; they do not prove an outcome.

Download CSVDownload JSON

Rinse-off

Link to row
What it can suggest
The product is intended to be removed after contact, so dilution, amount, contact time and rinse thoroughness define the exposure question.
Evidence to request
  • Complete directions for dilution, amount, contact time and rinsing.
  • Finished marketed-formula testing at the intended dilution, contact and rinse conditions for any performance or tolerance claim.
  • Product-protection evidence matching the formula, packaging and expected use.
What it cannot establish
  • That brief contact makes the product gentle or safe, or that rinsing removes every residue.
  • A moisturising result from a humectant name, or tolerance and suitability from the format.

Exposure questions

  • Is it used as supplied or diluted?
  • How much is applied, for how long and to which areas?
  • How thoroughly should it be rinsed?
Sources and their limits (5)
  1. Cori Dog research note — Reading surfactant blends — Treats dilution, contact time and rinsing as part of interpretation.Limit: Narrative synthesis of heterogeneous evidence units; it does not establish canine safety or rank ingredients.
  2. Cori Dog research note — Preservation as a system — Connects expected use and packaging with product protection.Limit: Maps human-cosmetics methods to formulation questions; it does not establish canine approval or pet-product law.
  3. EU Ecolabel criteria for cosmetic and animal-care products — Provides narrow official rinse-off animal-care terminology.Limit: Ecolabel-specific scope; it is not a universal legal classification and does not provide a general leave-on framework.
  4. Turkoglu et al. — Irritation potential of surfactant mixtures — Supports considering concentration and application conditions.Limit: Small human patch study; it cannot establish canine safety, tolerance or a finished dog-shampoo outcome.
  5. ISO 11930:2019 — Evaluation of antimicrobial protection — Provides finished-formulation product-protection method context.Limit: Human-cosmetics method; it is not canine approval, a pet-product legal requirement or a shelf-life result by itself.

Leave-on

Link to row
What it can suggest
The product is intended to remain after application, making amount, application area, frequency, duration and residue central exposure questions.
Evidence to request
  • Complete application, frequency, duration, transfer and stop-use directions.
  • Finished-product performance or tolerance evidence under the intended use conditions.
  • Packaging and, for water-containing products, product-specific preservation evidence.
What it cannot establish
  • Sustained hydration, barrier support or superior efficacy from contact time alone.
  • Gentleness, safety, tolerance or suitability from a humectant, lipid or format name.

Exposure questions

  • How much is applied and to which body areas?
  • How often is it reapplied and how long is residue intended to remain?
  • What contact, transfer and stop-use directions accompany it?
Sources and their limits (4)
  1. Cori Dog research note — Evaluating grooming claims — Requires finished-product evidence for performance and tolerance wording.Limit: Structured evidence map, not a legal opinion, product assessment or meta-analysis.
  2. Cori Dog research note — Preservation as a system — Connects marketed packaging and use with product protection.Limit: Maps human-cosmetics methods to formulation questions; it does not establish canine approval or pet-product law.
  3. Regulation (EC) No 1223/2009 — Cosmetic products — Illustrates complete-product and exposure assessment in a human-cosmetics framework.Limit: Concerns products for the human body; it does not classify or approve canine grooming products.
  4. ISO 11930:2019 — Evaluation of antimicrobial protection — Provides preservation-method context for water-containing finished formulas.Limit: Human-cosmetics method; it is not canine approval, a pet-product legal requirement or a shelf-life result by itself.

Wipe

Link to row
What it can suggest
Application is delivered through a wipe. Directions and packaging—not the word wipe—determine whether it is single-use, pre-dosed, leave-on or followed by rinsing.
Evidence to request
  • The complete marketed pack and directions, including area, amount or wipe count, frequency and rinse or no-rinse instructions.
  • Formula-and-pack product-protection evidence matching ordinary opening, handling and storage.
  • Finished-product evidence under the actual marketed conditions for any performance or tolerance claim.
What it cannot establish
  • Sterility, a lower dose, less residue, better hygiene or adequate preservation from the format alone.
  • Gentleness, safety, tolerance or suitability from single-use or wipe wording.

Exposure questions

  • Is the pack single-use or repeatedly opened?
  • How many wipes are used, on which area and how often?
  • Do the directions require rinsing or allow residue to remain?
Sources and their limits (4)
  1. Cori Dog research note — Preservation as a system — Treats packaging and ordinary use as parts of the product-protection system.Limit: Maps human-cosmetics methods to formulation questions; it does not establish canine approval or pet-product law.
  2. Cori Dog research note — Evaluating grooming claims — Requires marketed-format evidence for outcome wording.Limit: Structured evidence map, not a legal opinion, product assessment or meta-analysis.
  3. ISO 29621:2017 — Microbiologically low-risk products — Provides product-specific microbiological risk-assessment context.Limit: Human-cosmetics guidance; risk classification depends on product-specific information and is not canine approval.
  4. ISO 11930:2019 — Evaluation of antimicrobial protection — Provides finished-formulation product-protection method context.Limit: Human-cosmetics method; it is not canine approval, a pet-product legal requirement or a shelf-life result by itself.

Balm or cream

Link to row
What it can suggest
A thicker, structured application format. Directions still determine the area, amount, frequency and whether residue remains; the name does not prove that it is water-free or leave-on.
Evidence to request
  • Formula, packaging and complete directions for area, amount, frequency, removal and foreseeable contact.
  • Stability and preservation evidence appropriate to the composition and marketed pack.
  • Finished-product performance or tolerance evidence for any claimed outcome.
What it cannot establish
  • That the product is water-free, self-preserving or has a particular degree of occlusivity.
  • Barrier repair, healing, lick safety, tolerance or canine suitability from texture, waxes or the format name.

Exposure questions

  • Where and how much is applied, and how often?
  • Is residue intended to remain, be removed or be exposed to licking?
  • How is the pack opened and handled during ordinary use?
Sources and their limits (5)
  1. Cori Dog research note — Preservation as a system — Connects composition, packaging and use with product protection.Limit: Maps human-cosmetics methods to formulation questions; it does not establish canine approval or pet-product law.
  2. Cori Dog research note — Evaluating grooming claims — Requires finished-product evidence for performance or tolerance outcomes.Limit: Structured evidence map, not a legal opinion, product assessment or meta-analysis.
  3. CosIng record — Cera Alba — Supports possible wax formulation functions without establishing a balm outcome.Limit: Function terminology only; it does not establish balm occlusivity, clinical benefit, lick exposure, allergy suitability or safety.
  4. ISO 29621:2017 — Microbiologically low-risk products — Provides product-specific microbiological risk-assessment context.Limit: Human-cosmetics guidance; risk classification depends on product-specific information and is not canine approval.
  5. ISO 11930:2019 — Evaluation of antimicrobial protection — Provides finished-formulation protection context when applicable.Limit: Human-cosmetics method; it is not canine approval, a pet-product legal requirement or a shelf-life result by itself.

Evidence map

What each source adds—and where its answer stops

Each row keeps the useful finding beside its most important limit. This prevents a laboratory mechanism, database entry or regulation from quietly becoming a finished-product conclusion.

Evidence unit 01

UK VMD advertising guidance

Source 2
Design or scope
United Kingdom; non-medicinal veterinary products
What it contributes
Explains medicinal-by-presentation boundaries and how names, images, research links, testimonials and context can count as advertising.
Where the answer stops
Guidance must be applied to exact wording, product and context; this note is not legal advice.

Evidence unit 02

EU veterinary medicines law

Source 3
Design or scope
European Union
What it contributes
Defines the veterinary medicinal-product framework.
Where the answer stops
Classification is fact-specific and cannot be decided from one phrase in isolation.

Evidence unit 03

EU biocidal products law

Source 4
Design or scope
European Union
What it contributes
Provides the biocidal-product and treated-article framework.
Where the answer stops
Not every hygiene statement has the same status; substance, function, product and claim matter.

Evidence unit 04

EU UCPD Article 12

Source 5
Design or scope
EU factual-claim substantiation
What it contributes
Provides for authorities to require evidence for factual claims and treat unsupported claims as inaccurate in relevant proceedings.
Where the answer stops
Does not prescribe one universal study design for every grooming claim.

Evidence unit 05

UK CMA207 and CAP rule 3.7

Sources 6, 7
Design or scope
United Kingdom consumer law and self-regulatory advertising context
What it contributes
Supports review of likely consumer interpretation and documentary evidence for objective claims.
Where the answer stops
Application depends on the exact communication; CAP advice is not legal advice.

Evidence unit 06

FDA grooming-aid guidance and FTC policy

Sources 1, 8
Design or scope
United States
What it contributes
Connects intended use and claims with product status and objective-claim substantiation.
Where the answer stops
US-specific; included for comparison, not as the EU or UK rule.

Evidence unit 07

ARRIVE 2.0 and VICH GL9

Sources 9, 10
Design or scope
Animal-study reporting and veterinary clinical-study conduct
What it contributes
Provide frameworks for transparent reporting and study integrity.
Where the answer stops
Following a guideline does not establish effect size, remove bias or make an indirect study match a claim.

Transparent method

How this evidence map was assembled

Search recorded August 27, 2026. The source register contains 10 included evidence units. We report retained sources directly; we do not claim a reproducible screening count where no public screening log exists.

Scope

Official UK, EU and US regulatory sources were mapped with animal-study reporting and veterinary clinical-study guidance. UK and EU substantiation sources were added for the intended market focus. The result is a claim-review framework, not a legal determination.

Exclusion boundary

Brand claims, testimonials, retailer summaries, legal commentary without primary citations and studies that could not be connected to a defined claim were excluded.

Recorded discovery routes

  1. 01Official guidance: animal grooming aids and non-medicinal veterinary product advertising
  2. 02EU legislation: veterinary medicinal products, biocidal products and unfair commercial practices
  3. 03UK official guidance: unfair commercial practices and objective-claim substantiation
  4. 04Research reporting: ARRIVE 2.0 and VICH GL9 Good Clinical Practice

Use the research

Questions that keep the conclusion proportionate

Questions for a reviewer

  • What exact factual impression do the wording, imagery, name, links and context create?
  • Which market, product classification and regulator or self-regulatory code are relevant?
  • Is the cited evidence about an ingredient, prototype, finished product or in-use outcome?
  • Do product, comparator, population, exposure, endpoint and duration match the public claim?
  • Were allocation, blinding, attrition, adverse events, effect size and uncertainty reported?
  • Are conflicts, limitations and indirectness visible beside the conclusion?

What stronger claims would need

  • A comparative performance claim needs a defined comparator and reproducible finished-product method.
  • A canine health-outcome claim needs appropriately designed veterinary evidence and market-specific classification review.
  • A safety or hypoallergenic claim needs a defined scope, relevant population, adequate follow-up and transparent adverse-event evidence.

Limits

Limitations are part of the result

  • This is a cross-jurisdiction evidence map, not legal advice or a compliance opinion.
  • No Cori product claim, formula or proprietary evidence package was assessed.
  • The targeted search was conducted by one organization and was not independently duplicated.
  • No formal risk-of-bias or certainty-grading framework was applied.
  • No meta-analysis applies because the included documents do not estimate one comparable intervention effect.

Source register

Sources readers can inspect

  1. Source 01 · official guidance

    FDA CPG Sec. 653.100 Animal Grooming Aids

    US intended-use and claims context.

  2. Source 02 · official guidance

    UK VMD: advertising non-medicinal veterinary products

    UK guidance published 14 January 2026 on medicinal presentation and advertising context.

  3. Source 03 · official regulation

    Regulation (EU) 2019/6

    EU veterinary medicinal-products framework.

  4. Source 04 · official regulation

    Regulation (EU) No 528/2012

    EU biocidal-products framework.

  5. Source 05 · official regulation

    Directive 2005/29/EC, Article 12

    EU unfair-commercial-practices framework for substantiation of factual claims.

  6. Source 06 · official guidance

    UK CMA207: Unfair commercial practices

    Official UK guidance on unfair commercial practices under the Digital Markets, Competition and Consumers Act 2024.

  7. Source 07 · primary industry code

    CAP rule 3.7: Substantiation

    UK non-broadcast advertising self-regulatory context for objective claims; not legal advice.

  8. Source 08 · official guidance

    FTC advertising substantiation policy

    US objective-claim substantiation context.

  9. Source 09 · research reporting guideline

    ARRIVE Guidelines 2.0

    Animal-study reporting guidance.

  10. Source 10 · official guidance

    VICH GL9 Good Clinical Practice

    Veterinary clinical-study conduct guidance.