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Vet-developed
No artificial ingredients or fillers
Science backed
Triple biotic blend
#1 taste tested
Vet-developed
No artificial ingredients or fillers
Science backed
Triple biotic blend
#1 taste tested
Vet-developed
No artificial ingredients or fillers
Science backed
Triple biotic blend
#1 taste tested
Vet-developed
No artificial ingredients or fillers
Science backed
Triple biotic blend
#1 taste tested
Vet-developed
No artificial ingredients or fillers
Science backed
Triple biotic blend
#1 taste tested
Vet-developed
No artificial ingredients or fillers
Science backed
Triple biotic blend
#1 taste tested
Vet-developed
No artificial ingredients or fillers
Science backed
Triple biotic blend
#1 taste tested
Vet-developed
No artificial ingredients or fillers
Science backed
Triple biotic blend
#1 taste tested
The Real Reason Their Breath Smells So Bad
Most breath fresheners just mask the odor — here’s the real cause.
Bad breath isn’t just in your dog’s mouth — it starts deep in the gut.
When harmful bacteria overgrow in the digestive tract, they produce sulfur compounds that rise up into the mouth…
...fueling odor, plaque, and gum inflammation.
Even if you brush or use chews, the smell keeps coming back — because you’re only treating the surface.
Dog Parent Approved
Read real (honest) reviews from pet parents just like you, here.

Prebiotics
Feed good bacteria, keeping your pup’s gut & mouth healthy & balanced while supporting probiotic functionality

Probiotics
Promote good bacteria and a balanced inflammatory response. Clinically studied strains help reduce bad bacteria and support overall oral health

Postbiotics
Clinically proven to break down sticky biofilms that cause plaque and to reduce volatile sulfur compounds, the root cause of bad breath in dogs

brown algae
Clinically proven to reduce plaque and tartar buildup

Zinc
Helps minimize compounds that cause bad breath
Why Pet Parents Switch to PetSwan
we’re a whole different breed
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Others |
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vet-formulated and approved | ||
rigorously tested for efficacy | ||
no fillers or artificial flavors | ||
most ingredients per gram | ||
clean ingredient labels | ||
doggy taste test approved |

Backed by experts, Loved by pets
“The best supplements should be effective, safe, and easy to give, and PetSwan supplements check all the boxes! I love that PetSwan Supplements are formulated by Board Certified Veterinary Nutritionists® to ensure their effects are evidence-based. They come in innovative, palatable formats that deliver just the good stuff without fillers or additives. Pet parents can feel great about giving them, and dogs feel like they are receiving a treat.”
Dr. Dan Su-MS, DVM, DACVIM
Frequently Asked Questions
What does GutWell Clean Breath do and how does it work?
What does GutWell Clean Breath do and how does it work?
GutWell Clean Breath gets straight to the source of dental issues by balancing your dog's oral and gut microbiomes with a targeted triple-biotic blend and clinically proven ingredients. This is best for dogs with bad breath, unhealthy gums & plaque buildup.
What makes GutWell Clean Breath different from other products in the market?
What makes GutWell Clean Breath different from other products in the market?
GutWell Clean Breath is the only triple-biotic dental health dog supplement on the market, treating bad breath at its root cause-imbalances in the oral and gut microbiomes. Our Board Certified Veterinary Nutritionist carefully crafted a formula with a triple-biotic blend of pre, pro, and post biotics specifically selected for their dental health benefits.
Many popular dog dental products on the market are filled with starchy fillers, artificial ingredients, and preservatives that can actually throw the gut and oral microbiomes off balance, making the issue worse. Packed with active ingredients and zero fillers, every component is chosen for its health benefits—nothing unnecessary, just what your dog needs. GutWell is made with a proprietary cold-pressed process that keeps the ingredients at their best, ensuring maximum potency with minimal processing. Made with tasty and healthy pumpkin and pork plasma- every ingredient, even our inactives, has a purpose.
At what age can I give GutWell Clean Breath to my dog?
At what age can I give GutWell Clean Breath to my dog?
We recommend GutWell Clean Breath for any dog over 3 months old.
How many calories are in GutWell Clean Breath?
How many calories are in GutWell Clean Breath?
18.3 kcal per scoop
What flavor is GutWell Clean Breath?
What flavor is GutWell Clean Breath?
All GutWell products are made with a tasty base of pork plasma and pumpkin for a taste your dog will love.
Who formulated GutWell Clean Breath?
Who formulated GutWell Clean Breath?
GutWell was expertly formulated by our in-house Board-Certified Veterinary Nutritionist, Dr. Dan Su.
Can I use GutWell with my dog’s current fiber supplement?
Can I use GutWell with my dog’s current fiber supplement?
We always recommend consulting your veterinarian when it comes to combining fiber supplements.