Short answer: The Veterinary Oral Health Council (VOHC) seal means that one specific product met the council's standard for helping to reduce plaque build-up, tartar build-up or both, in the species it was tested in, on the evidence of two independent trials. It does not cover the brand's other products or other species. Endorsement badges and proof phrases are not seals at all: they are claims, only as good as the evidence behind them. To judge a product, read the label for species, serving, full ingredients and warnings.
What the VOHC seal is
The Veterinary Oral Health Council is the body behind the seal you may see on some pet toothpastes, chews and water additives. A manufacturer submits trial evidence to the council, with a fee, and the council checks it against its standards before accepting the product. Those standards are demanding:
- Two independent trials, with no animals shared between them.
- Careful design. Where a trial is a cross-over, each phase lasts at least 28 days, with a seven-day wash-out between phases.
- A defined claim: helping to reduce plaque build-up, tartar build-up, or both.
- A limited term. Acceptance is granted for an initial three years, and an annual fee keeps it in place.
The council publishes its list of accepted products, so any seal can be checked.
What the seal tells you, and what it does not
The seal is precise, which is what makes it useful. It tells you that this exact product met the council's standard for this claim, plaque, tartar or both, in this species. It does not tell you that the brand's other products work, that the product suits another species, that it is a veterinary medicine, or that it can stand in for daily brushing and veterinary care. An acceptance in dogs says nothing about cats.
The seal in our range
Petdentist® officially distributes Petsmile® Professional Pet Toothpaste, which is VOHC accepted for plaque in dogs, and has been since 2011. That acceptance belongs to that toothpaste, for plaque, in dogs. We do not extend it to the other products we sell, or to cats, and none of our own-brand Petdentist® products carries the seal. If one ever does, it will be because it has been through the same two-trial process, and we will tell you exactly what was accepted.
"Recommended by vets" and other badges
A badge saying a product is recommended by vets can mean a survey of a handful of vets, a single vet paid to endorse it, or nothing anyone could check. Unless the company tells you who recommended it, how many, what they were asked and when, the badge tells you about the marketing rather than the product.
UK advertising rules expect benefit claims for animal products to be backed by robust evidence specific to the claim, and a badge implying veterinary endorsement is still a claim. We do not use vet-approved badges, or any other badge that borrows veterinary authority. Our founder is a human dental surgeon, not a veterinary surgeon, and we will not borrow the authority of a profession we exist to support.
Proof claims: what they should mean
We do not use the phrase "clinically proven", and here is why. At its best, the phrase would mean a controlled trial of this exact product, in this species, measuring the outcome printed on the pack. Too often it means something weaker: an ingredient studied in another species, at another amount, in another format, or in a laboratory dish.
There is also a harder limit. In the UK, a claim that a product deals with a disease is a medicinal claim, whatever evidence sits behind it, and only authorised veterinary medicines may make one. Instead of proof phrases, we grade our evidence from A (a controlled trial of the product itself) to E (a theoretical rationale), and our wording never goes further than the grade.
How we grade evidence
Every scientific statement on this site carries a grade: A product-specific controlled trial · B strain- or species-specific study in dogs or cats · C species mechanistic evidence · D laboratory (in-vitro) evidence · E theoretical rationale. The strength of a claim never exceeds the strength of its evidence. Read our evidence standards.
The UK rules in plain English
The Veterinary Medicines Directorate (VMD) enforces the Veterinary Medicines Regulations 2013. For non-medicinal products such as toothpastes, powders and water additives, the core rule is simple: they may only talk about maintaining health in healthy animals.
- Presentation counts. A product becomes medicinal by presentation if its words, name, pictures, customer reviews or cited research suggest it deals with a disease. Reviews a company publishes are its responsibility.
- "Natural" is no exemption. Herbal and natural products follow the same rules.
- Enforcement is real. The VMD updated its guidance on 14 January 2026 after more than 400 enforcement reports in the previous year, and breaches can bring unlimited fines or up to two years' imprisonment.
- Advertising rules agree. The Advertising Standards Authority regards any stated or implied claim to deal with an adverse condition as medicinal, however strong the evidence.
In the UAE, only licensed vets may diagnose or treat pets, and imported pet food and feed must be registered with the Ministry of Climate Change and Environment (MOCCAE).
How to read a label
- Species. Named clearly, with a serving for each. For cats, no essential oils, phenols or high-iodine kelp.
- Serving. By body weight, with a scoop or measure, and described as a serving or feeding amount rather than in the language of medicines.
- Ingredients. A full list, including carriers and flavourings, and for feeds a description such as "complementary feed".
- Warnings. Who should not use it and when to ask your vet first, for example before giving a kelp-based product to a pet with a thyroid condition.
- Who stands behind it. A named company with an address, a batch number and a best-before date.
For the full version, see twelve checks before you buy.
What a responsible claim looks like
| Responsible | Walk away |
|---|---|
| Helps reduce plaque build-up as part of daily brushing | Removes all plaque, no brushing needed |
| Freshens breath | Names a mouth disease and promises to fix it |
| Supports healthy gums | Works instead of a veterinary dental clean |
| For healthy dogs; consult your veterinary surgeon if your dog has a health condition | Suitable for all pets, with one serving for everyone |
| Names its evidence: the product, the species, the study | "Proven by science", with no study named |
If a claim reads like a promise to fix something, it is either breaking the rules or claiming more than the evidence supports.
When to see your vet
If you notice loose or wobbly teeth, swelling, discharge, bleeding that does not settle, reluctance to eat, dropping food, drooling, pawing at the mouth or any change in behaviour, please contact your veterinary surgeon promptly. Home care supports professional care — it never replaces it.