Looking for an easier way to care for your dog or cat’s teeth? Orozyme Oral Hygiene Gel is an enzymatic dental gel designed to help control dental plaque, support healthy gums and reduce bad breath in dogs and cats.
But does Orozyme actually work, and what does the science say about enzymatic dental care?
At Pet Furmacy, we believe dental products should be recommended based on evidence rather than marketing claims. Here is what pet owners need to know.
Quick answer: Is Orozyme good for dogs and cats?
Orozyme is a veterinary oral hygiene gel containing a patented multi-enzyme LPO complex designed to support the mouth’s natural antimicrobial defence system and help control plaque.
Its ingredients include lactoperoxidase, lactoferrin, lysozyme, glucose oxidase, amylase and superoxide dismutase, alongside mild abrasives and a surfactant that helps the gel remain in contact with the teeth and gums.
Orozyme may therefore be particularly useful for:
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dogs and cats that are difficult to toothbrush
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pets prone to plaque accumulation or bad breath
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maintaining oral hygiene after a professional dental clean
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owners looking for an easy daily dental routine
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use alongside toothbrushing for more complete plaque control
However, Orozyme should not be considered a substitute for veterinary dental treatment when established tartar or periodontal disease is already present.
Why dental care matters for dogs and cats
Dental disease is extremely common in companion animals. The World Small Animal Veterinary Association describes periodontal disease as one of the most common health problems affecting dogs and cats.
The process usually begins with dental plaque, a bacterial biofilm that forms continuously on the tooth surface.
If plaque is not adequately controlled, inflammation can develop around the gumline and periodontal disease may progressively damage the tissues supporting the teeth.
Importantly, the WSAVA notes that it is plaque around and below the gumline, rather than simply visible tartar, that drives periodontal inflammation.
This is why good dental care is about much more than making teeth look white.
What is Orozyme?
Orozyme Oral Hygiene Gel is an enzymatic toothpaste or dental gel formulated specifically for dogs and cats.
Unlike human toothpaste, veterinary dental products are designed to be used safely in animals without needing to be rinsed from the mouth.
Orozyme contains a patented LPO enzyme complex that mimics and supplements naturally occurring antimicrobial systems found in saliva.
The formulation contains:
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Lactoperoxidase
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Glucose oxidase
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Lactoferrin
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Lysozyme
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Amylase
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Superoxide dismutase
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potassium thiocyanate
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mild polishing agents
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a non-ionic surfactant
These ingredients act in several complementary ways.
How does Orozyme work?
1. Lactoperoxidase and glucose oxidase support natural oral defences
The lactoperoxidase system is part of the natural antimicrobial defence system found in saliva.
Glucose oxidase produces hydrogen peroxide, which can participate in the lactoperoxidase system to generate antimicrobial compounds such as hypothiocyanite.
These compounds can inhibit the growth and metabolism of oral bacteria. Veterinary research describes glucose oxidase and lactoperoxidase as commonly used enzyme systems in canine and feline dental products.
This mechanism is one reason enzymatic toothpaste is different from an ordinary flavoured dental paste.
2. Lactoferrin helps limit bacterial growth
Lactoferrin is a naturally occurring protein with antimicrobial properties.
One of its mechanisms is binding iron, making this essential nutrient less available to certain bacteria. Lactoferrin may also interfere with bacterial adhesion and biofilm formation.
3. Lysozyme contributes another antimicrobial mechanism
Lysozyme is another naturally occurring antimicrobial component of saliva.
It can affect bacterial cell walls and may interfere with bacterial attachment to oral surfaces.
Rather than relying on a single ingredient, Orozyme combines several components of natural salivary defence.
4. The gel remains in contact with the teeth
Orozyme contains a surfactant, designed to help its active ingredients remain in contact with the teeth and gingival surfaces.
The formula is also mildly abrasive and non-foaming, helping loosen plaque while remaining appropriate for veterinary oral use.
This is particularly useful when the gel is applied directly along the teeth and gums.
Does enzymatic toothpaste actually work?
There is scientific support for enzymatic oral-care systems, although it is important to understand what the evidence does and does not show.
A controlled study investigating a toothpaste containing a lactoperoxidase enzyme system found that toothpaste application reduced oral bacterial numbers compared with no ongoing oral care during parts of the eight-week study.
However, toothbrushing produced a stronger effect than toothpaste alone.
Another veterinary review describes lactoperoxidase, glucose oxidase, lysozyme and lactoferrin as commonly incorporated into veterinary dental gels and toothpastes because of their antimicrobial properties.
There is also evidence that topical oral gels containing enzyme and anti-biofilm systems can reduce plaque accumulation. A 2026 randomised controlled study involving 32 dogs found that once-daily application of an enzymatic oral gel without brushing reduced plaque accumulation and improved several measures of oral health over 30 days. The gel used in that study was not Orozyme, so the result should be regarded as supporting the general concept of enzyme-based topical dental gels, rather than proving the effectiveness of Orozyme specifically.
Orozyme's own product literature also references an assessment of the Orozyme dental gel, although this appears to be manufacturer-associated research rather than the type of large, independent peer-reviewed clinical trial we would consider the strongest level of evidence.
What does this mean for pet owners?
The evidence suggests that enzymatic dental products can contribute to plaque control, but mechanical cleaning remains important.
In other words:
Orozyme can be a useful dental-care tool, particularly when brushing is difficult, but brushing remains the gold standard whenever your pet will tolerate it.
Is Orozyme a replacement for brushing your dog's teeth?
Not quite.
According to the WSAVA Global Dental Guidelines, daily toothbrushing is the most effective home method of mechanically removing dental plaque.
In one cited study, daily toothbrushing was more than three times as effective at controlling plaque accumulation as a dental chew or dental diet.
That does not mean Orozyme has no value without brushing.
Realistically, many cats and dogs will not tolerate a toothbrush every day. A dental gel that owners can actually apply consistently may be considerably more useful than a toothbrush sitting unused in a cupboard.
For an ideal routine:
Best: daily toothbrushing + Orozyme
Good: frequent toothbrushing + Orozyme on non-brushing days
If brushing isn't possible: daily Orozyme application is a practical option, alongside regular veterinary dental checks.
Can Orozyme remove tartar?
This is an important distinction.
Plaque
Plaque is a relatively soft bacterial biofilm. Daily home dental care aims primarily to reduce plaque accumulation.
Tartar or calculus
Once plaque mineralises into hard dental calculus or tartar, a gel or toothpaste cannot reliably remove heavy established deposits.
If your pet already has substantial yellow or brown calculus, red or bleeding gums, loose teeth or significant bad breath, a veterinary dental examination is recommended.
A professional dental procedure may be required before beginning an effective maintenance programme.
How to use Orozyme Oral Hygiene Gel
For best results, use Orozyme regularly, ideally every day, particularly after the final meal.
It can be:
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applied with a toothbrush
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applied using a finger brush
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rubbed along the gums and teeth with a finger
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applied directly into the mouth using the supplied applicator
Product instructions commonly recommend approximately:
Cats and very small dogs: 1 cm of gel
Dogs under 20 kg: 2 cm of gel
Dogs over 20 kg: 5 cm of gel
Follow the directions supplied with your specific pack.
Pet Furmacy tip
Don't worry about opening your pet's mouth and trying to brush every tooth.
For many pets, gently lifting the lip and applying the gel along the outer surfaces of the teeth close to the gumline is much easier.
This is also where plaque control matters most.
When should I start using Orozyme?
Prevention is much easier than trying to manage established dental disease.
The WSAVA recommends introducing toothbrushing once the permanent teeth have erupted, typically at around 6 to 7 months of age, or following a professional dental clean.
Starting dental handling early also makes future toothbrushing and oral examinations much easier.
Orozyme can therefore form part of a long-term preventive dental routine for both dogs and cats.
Orozyme for dogs that hate having their teeth brushed
This is probably where Orozyme becomes most useful.
Some dogs simply will not tolerate a toothbrush.
Instead of abandoning dental home care completely, try gradually building a routine:
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Start by lifting your dog's lip and rewarding them.
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Progress to touching the gums and teeth.
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Introduce a small amount of Orozyme.
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Eventually add a finger brush or soft toothbrush if tolerated.
Even a very short daily routine is preferable to an elaborate routine that only happens once every few weeks.
Consistency matters.
Can cats use Orozyme?
Yes. Orozyme Oral Hygiene Gel is formulated for both cats and dogs.
Cats can be particularly challenging when it comes to toothbrushing, so an easy-to-apply gel can be helpful.
However, cats are also prone to dental conditions such as tooth resorption, gingivitis and stomatitis, which cannot simply be treated with toothpaste.
If your cat has:
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painful eating
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drooling
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pawing at the mouth
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red or bleeding gums
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marked bad breath
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difficulty chewing
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reduced appetite
book a veterinary examination rather than relying on home dental care alone.
Orozyme vs normal dog toothpaste
The major difference is Orozyme's multi-enzyme LPO system.
A standard pet toothpaste may primarily provide flavour, mild abrasive cleaning or breath freshening.
Orozyme combines mechanical cleaning properties with enzymes and antimicrobial proteins including lactoperoxidase, lactoferrin and lysozyme.
That makes it an attractive option for pet owners specifically looking for an enzymatic toothpaste for dogs or cats.
Orozyme vs dental chews
They work differently.
Orozyme
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applied directly to the oral cavity
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targets the tooth and gum surfaces
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provides an enzymatic oral-care system
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can be used with or without brushing
Dental chews
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rely predominantly on mechanical chewing action
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may be particularly useful for premolars and molars
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effectiveness varies substantially between products
The WSAVA notes that active home care tends to work particularly well on the front teeth, while properly designed chewing products may complement this by acting on the rear teeth.
For many dogs, combining different evidence-based methods gives the most practical overall dental routine.
What is the best dental routine for a dog or cat?
For most pets, we recommend thinking of dental care in three layers:
1. Veterinary dental assessment
Your vet checks for periodontal disease, fractured teeth, resorptive lesions and other problems that cannot be identified simply by looking at tartar.
2. Mechanical plaque removal
Daily toothbrushing remains the gold standard.
3. Dental products that improve compliance
Products such as Orozyme may make daily oral care easier and provide additional enzymatic support.
The best dental product is ultimately one that is safe, evidence-informed and used consistently.
Frequently Asked Questions About Orozyme
Does Orozyme really work?
Orozyme contains an established multi-enzyme system including lactoperoxidase, glucose oxidase, lactoferrin and lysozyme. These types of ingredients have biologically plausible and scientifically described antimicrobial effects, and studies of enzymatic toothpaste and oral gels support their role as adjuncts to plaque control.
However, evidence supporting toothbrushing is stronger, so Orozyme is best regarded as part of a dental hygiene programme rather than a replacement for veterinary dental treatment.
Can I use Orozyme without brushing?
Yes. Orozyme is designed so it can be applied directly to the teeth and gums without brushing.
If your pet tolerates brushing, combining the gel with brushing will provide additional mechanical plaque removal.
Is Orozyme suitable for cats?
Yes. Orozyme Oral Hygiene Gel is formulated for both dogs and cats.
How often should Orozyme be used?
For the best preventive dental routine, regular use is important. The product is generally recommended once daily, preferably after the last meal.
What is the best toothpaste for dogs that won't let you brush their teeth?
An enzymatic dental gel such as Orozyme can be a practical option because it can be applied along the teeth and gums without full toothbrushing. It does not make mechanical cleaning unnecessary, but it gives owners a realistic dental-care option when brushing is difficult.
References
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World Small Animal Veterinary Association. Global Dental Guidelines.
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World Small Animal Veterinary Association. Toothbrushing Toolkit.
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Yamazoe K, et al. Inhibitory effect for proliferation of oral bacteria in dogs by tooth brushing and application of toothpaste. Journal of Veterinary Medical Science. 2016.
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Albuquerque C, et al. Veterinary periodontal disease literature describing lactoperoxidase, glucose oxidase, lactoferrin and lysozyme in veterinary oral-care products.
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Gawor JP, et al. Effects of a New Combination of Antibiofilm Enzymes, Antiadhesive Agents, and Liquorice Extracts on Plaque Accumulation in Dogs. 2026.
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Orozyme / Ecuphar product information.
This article provides general educational information and does not replace an examination or treatment recommendation from your veterinarian.
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