An excellent tool to help balance your dog's gut for healthy digestion & skin.
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America's #1 Probiotic Chew for Your Dog's Gut Health2
Digestive health. Firmer stools. Yeast. A stronger immune system. The world's first clinically studied dog probiotic soft chew3, formulated by an expert pet nutritionist. Delicious pork flavor.
2M+ Dogs | 10M+ Tubs Sold in the USA
Backed by world-class scientific expertise
Our Scientific Advisory Board brings together leading experts in pet nutrition, veterinary medicine, and clinical research. This distinguished team has collaborated to develop formulas that represent the cutting edge of pet health science.
Gregory D. Sunvold
Ph.D. Chief Scientist
Dr. Jan Bellows
Board Certified Veterinary Dentist
Dr. Gavin Casper
Veterinary Mobility Specialist
Jessica Bagel
Clinical Trial Manager
Dr. Margie Scherk
Veterinary Feline Specialist
Dr. Stephanie McGrath
Veterinary Cognitive and Clinical Science Specialist
Dr. Matt Kaeberlein
CEO of Optispan, Co-Director of Dog Aging Project
Dr. Roxana Bordbar
US VM, Vet Consultant to PetLabCo.
Clinically studied.
Science-backed.
A healthier gut.
World's 1st Clinically Studied Probiotic Soft Chew for Dogs*
Double-blind, placebo-controlled, peer-reviewed clinical study designed by Dr. Greg Sunvold, Ph.D.
Dr. Greg Sunvold, Ph.D.
PetLabCo.® Chief Scientist
Backed by the only dog probiotic soft chew study published in a peer-reviewed journal. In a 31-day clinical study, daily use increased beneficial gut bacteria and supported a healthy inflammatory response. But what does that look like in your dog's life? We asked real dog owners what they saw after 90 days of daily use.
How the science showed up in real dogs' lives over 90 days4:
Dogs loved it from their first try.
Noticed better digestion.
Reported better gut health.
Saw less itching and paw licking..
* A 31-day clinical study showed using Probiotic Chew daily enhances beneficial gut bacteria.
8 science-backed reasons to choose PetLabCo.®'s Probiotic Chew for your dog's gut health
Based on a 90-day quantitative consumer experience study and a 31-day peer-reviewed clinical study developed with leading veterinary and nutrition scientists.
1
89% of pet parents see visible results in just 90 days4
In a 90-day consumer experience study, 89% of pet parents saw visible improvements in their dog's health4. No more guessing. No more switching foods. Just a clinically studied blend of prebiotics, probiotics and postbiotics in a daily soft chew. For firmer stools, less itching, more good days.
These probiotics have really helped with his gut issues and paw licking.
— Dion H., Verified Customer
2
86% report better digestion, firmer stools & less stomach upset4
86% of study participants reported less digestive upset, firmer stools, and better overall digestion4. PetLabCo.®'s tribiotic formula works on every level of the gut. Prebiotics (FOS & GOS) feed beneficial bacteria, 3 billion CFU of spore-forming probiotics replenish them, and a postbiotic yeast blend supports gut barrier integrity. No more stomach gurgling, occasional loose stools, or emergency cleanups.
The improvement in Sig’s digestion & stools are significant! Many years of intestinal troubles are hopefully ending.
— Terry M., Verified Customer
3
88% report better overall gut health after consistent use4
88% of participants in our 90-day consumer experience study reported better overall gut health after consistent daily use4. PetLabCo.®'s spore-forming Bacillus strains (B. coagulans, B. clausii, and B. subtilis) stand a greater chance of surviving stomach acid and reaching the gut alive, where they maintain balanced gut flora and support digestive function.
Thank you all so much my baby is feeling a lot better. Thank you a lot. I’m going to let others know about you all.
— Travis E., Verified Customer
4
82% report less itching, paw licking & head shaking4
80% of your dog's immune system lives in their gut. When gut health is off, the immune response overreacts to everyday environmental triggers. Causing the scratching, paw licking, and head shaking topical solutions alone can't fix. PetLabCo.®'s Probiotic Chews address the common root cause, not just the signs. 82% of study participants noticed the difference4.
I am finishing the second month and I’ve seen results last week. The scratching is reduced by over 70% I’m so impressed!!! I recommend this product! Don’t hesitate 👏👏👏
— Joelle D., Verified Customer
5
92% of dogs love the pork-flavor from day one4
No more capsules your dog spits out. No more powders they won't touch. PetLabCo.®'s Probiotic Chews deliver a complete prebiotic, probiotic, and postbiotic system in a soft, pork-flavored chew. 92% of study participants said giving them was easy from day one4. Dogs don't just tolerate these. They sit by the counter eagerly waiting.
Great product for gut health. My dog loves the taste.
— Kathy L., Verified Customer
6
Formulated by a scientist with 30+ years pioneering pet nutrition
PetLabCo.®'s Probiotic Chew was formulated by Dr. Greg Sunvold, Ph.D., a scientist who spent 30+ years understanding the science behind how prebiotics, probiotics, and postbiotics work in a dog's gut. He built the gastrointestinal research discipline at one of the world's largest pet care companies, isolated novel probiotic strains, and developed new ways to deliver live probiotics. That expertise is behind every decision in this formula. And the clinical study that showed it works.
These probiotics are great. My dogs licking and scratching has improved. My vet okayed these.
— Becky Y., Verified Customer
7
Better gut health unlocks whole-body health
Each daily soft chew goes far beyond digestive health. A balanced gut microbiome supports immune function, a healthy skin barrier, normal yeast levels, and coat health, so your dog looks as good as they feel. Spore-forming probiotics for gut balance, prebiotic fiber to fuel beneficial bacteria, and a postbiotic yeast blend for immune support. All scientifically studied. Each soft chew builds the foundation for long-term health.
I really love your product. My dogs health has improved so much since he's been taking them.
— Veronica S., Verified Customer
8
87% recommend to a friend4 – 100,000+ 5-star PetLabCo.® reviews globally
87% of participants in our 90-day consumer experience study recommend PetLabCo.® Probiotic Chews to a friend4. PetLabCo.® has earned 100,000+ five-star reviews globally from pet parents who stopped guessing and started seeing results. Firmer stools. Less itching. Happier dogs.
Thank you all so much my baby is feeling a lot better. Thank you a lot. I’m going to let others know about you all.
— Travis E., Verified Customer
4.7 Average Rating | 100,000+ 5-Star Reviews
87% Recommend to Friends4
Real stories, real results*
5.0
Really helped our Daisy
“Our 5 yr old lab had a lot of issues with her tummy bothering her. [...] Soon after taking the Probiotic [soft] chews we noticed a huge difference. She hasn’t wanted to eat grass in months and no more rumbling or gurgling from her belly!”
Lori W.
Verified Buyer
5.0
Wonderful product
“Jack loves taking these PerLabCo. probiotic chews. He takes 3 a day and is in month 3 or 4 & has made a big improvement. Skin looks good, coat looks good, itching is gone, overall a happy boy!”
Wendy C.
Verified Buyer
5.0
Probiotic chews
My dog has been taking these now for several months and he takes them easily and his sensitive stomach has become so much better. It has helped him a lot. No more eating grass [...] etc. this has all stopped he’s doing very well on this product. This is my dog Rocky.
Priscilla W.
Verified Buyer
5.0
It Works!
“My chihuahua mix was constantly licking his paws and it was driving us crazy, especially at night. I have tried other probiotics, but after consistent daily doses of the Petlab probiotic and their green enzymes for teeth, he has stopped licking and his breath is manageable. I don’t think we’ll need to extract any more teeth either. 2 great products!”
Ann N.
Verified Buyer
Clinically Studied Formula¹
Meet the first clinically studied probiotic soft chew for dogs¹
Tasty pork flavored soft chews made with powerful probiotics for dogs to support digestive health, seasonal allergies & healthy yeast production.
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“A 90-day routine is the most effective way to support a balanced gut microbiome.” - Dr. Siria Cruz, DVM.
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All of our products are shipped from USA
Paraben-free
Fragrance-free
Synthetic-colorant-free
Hemp/CBD-free
* from domestic and globally sourced ingredients
Why Subscribe & Save
PetLabCo.®'s Probiotic Chews are designed for long-term, cumulative gut health benefits. While many pet parents notice improvements in the first few weeks, our survey data shows maximum results after consistent 90-day use4.
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89% see results within 90 days4
Frequently asked questions
Probiotics are live strains of healthy bacteria that help dogs maintain normal digestive function and support overall gut and immune health. Giving dogs daily probiotic supplements may normalize bowel movements, provide support for occasional loose stools, and even help dogs dealing with seasonal allergy discomfort.
PetLabCo.®'s Probiotic Chews contain a proprietary blend of prebiotics and probiotics. The active ingredients include:
- Bacillus coagulans
- B. clausii
- B. subtilis
- Fructooligosaccharides (FOS)
- Galactooligosaccharides (GOS)
- A synergistic postbiotic blend of yeast (Saccharomyces cerevisiae, Cyberlindnera jadinii)
Our probiotic supplements are pork-flavored, making them a delicious reward that appeals to a wide range of canine tastes and preferences.
The time it takes for a dog to experience the benefits of probiotic supplements will vary and may depend on a dog’s age, breed, genetics, health, and overall lifestyle. It is generally suggested that dogs take a supplement according to package instruction for 60-90 days to see the full benefits take effect.
In an internal feedback survey of pet parents with a Probiotic Chew subscription, 84 percent of respondents saw expected results after 3 months of daily use.*
* Results based on Probiotic Chew subscriber internal feedback survey conducted in March 2022 (n=300).
Consult with your veterinarian if you’re wondering how long to keep your dog on a particular supplement. Many probiotics for dogs – like PetLabCo.® Probiotic Chews — are suitable for daily use according to package instructions and can be given to dogs as part of their lifelong wellness regimen. They are also particularly helpful during and after antibiotic treatments, during periods of stress, after dietary changes, or when your dog exhibits signs of occasional digestive discomfort. Your veterinarian can guide you based on your dog’s specific needs.
If a time of day is not specified in the directions for use, you can generally give your dog probiotics when it is most convenient for you. Some pet parents prefer giving dogs probiotics first thing in the morning when a dog’s stomach is less acidic. Others choose to give probiotics with meals to minimize the likelihood of digestive upset. You can also ask your veterinarian for a recommendation.
Our probiotics for dogs come in a convenient, no-mess soft chew. In comparison to powders, these yummy, pork-flavored chews can be given directly, eliminating the need for mixing or measuring. Dogs eagerly look forward to the taste.
These probiotic soft chews are suitable for dogs and puppies of all breeds and sizes, 12 weeks and older.
If you accidentally give your dog too many chews, contact your veterinarian. If you’re unsure how many soft chews to give your dog, please see the Directions for Use at the top of the page.
The PetLabCo.® Probiotic Soft Chews are formulated to benefit dogs and should not be given to cats. If you are looking for something to support your feline’s gut health, our newly launched Cat Probiotic is a great option!
We use high-quality ingredients in our soft chews to ensure your pup gets the best. Please consult with your vet first if you have any concerns.
Our Probiotic Chews have a shelf-life of 12 months.
Products may be returned for a full refund within 30 days. Your return must be unopened and in the same condition that you received it.
Our inventory system ensures we maintain a ready supply of Probiotic Chews to meet demand, even during peak seasons.
1. Free shipping is only applicable on subscription orders. Automatically renews at the standard discounted rate after the first month.
2. YTD 2024 (as of Oct 31, 2024): PetLabCo.® PBC is #1 dog digestive remedy on Amazon
3. A 31-day clinical study showed using Probiotic Chew daily enhances beneficial gut bacteria.
4. Based on a survey of PetLabCo.® subscribers who reported using Probiotic Chews daily or almost daily for 90+ days. Results reflect customer feedback collected in September 2025 (¹n=307; ²n=249, based on subscribers whose dogs itched, paw licked or shook their head; ³n=139, based on subscribers whose dogs had occasional digestive issues; ⁴n=224, based on subscribers who wanted better gut health; ⁵n=298).
5. Free gift offer is only applicable to your first subscription order, and will not be given on an ongoing basis
*PetLabCo.® Advertisement. Results may vary. Not intended for human consumption. Please consult your veterinarian regarding any change in treatment or supplementation.
© 2026 PetLabCo.®
The information contained within this site is not intended as a substitute for professional medical or veterinary advice. If your pet has, or you suspect your pet has any medical condition you are urged to consult your veterinarian. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Medical conditions can only be diagnosed by a licensed veterinarian.
The use of the logos are copyrighted by each respective entity and use of any particular logo may represent a publication, advertisement, or mention of PetLabCo.® on a local affiliate or regional carrier.
The use of the logos are copyrighted by each respective entity and use of any particular logo may represent a publication, advertisement, or mention of PetLabCo.® on a local affiliate or regional carrier.
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