PetLab Co. Reviews 2026: Are These Probiotic Chews & Supplements the Secret to a Healthier, Happier Dog?

Meta Description: Are PetLab Co. probiotic chews, joint care, and dental formulas worth it? Read our in-depth PetLab Co. reviews, expert insights, and real customer experiences before you buy.

Introduction: The Moment I Realized My Dog Needed More Than Just Love

I’ll never forget the day I noticed my golden retriever, Max, struggling to jump onto the couch—a move he’d executed with effortless grace for years. He was slowing down. His breath was less than kissable. And the constant scratching? It was breaking my heart.

Like millions of pet parents, I found myself asking: Is there something more I can do?

That question led me down a rabbit hole of pet supplements, veterinary advice, and late-night Google searches. And again and again, one name kept surfacing: PetLab Co.

With over 4.5 million pet parents trusting the brand and 85% of subscribers seeing results within 3 months of daily use, PetLab Co. has become a household name in pet wellness. But with thousands of PetLab Co. reviews flooding the internet—some glowing, some critical—I knew I had to dig deeper.

In this comprehensive PetLab Co. review, I’ll share everything I discovered: the science behind their products, real customer experiences, potential drawbacks, and whether this pet lab company is truly worth your hard-earned money.

What Is PetLab Co.? The Story Behind the Brand

From Personal Loss to Global Mission

PetLab Co. wasn’t born in a boardroom—it was born from heartbreak.

Co-founder and CEO Chris Masanto started the company after the devastating loss of his senior dog, Krystal. Determined to find a better way to address common canine ailments, he teamed up with fellow dog lover Damian Grabarczyk to create PetLab Co. in 2018.

What began as a personal mission has since grown into a premium global pet supplement brand headquartered in London, with a significant presence in the US, UK, and EU. In February 2025, BC Partners—the investment firm behind Chewy, PetSmart, and VetPartners—acquired a majority stake in the company, a testament to its rapid growth and market potential.

Science-Backed, Vet-Reviewed

PetLab Co. isn’t just another supplement company throwing ingredients together. They collaborate with veterinary professionals, use premium ingredients, and have earned certifications from the National Animal Supplement Council (NASC) and NSF for Good Manufacturing Practices (GMP).

As Dr. Roxana Bordbar, DVM and Veterinary Consultant to PetLab Co., puts it: “For excellent multi-modal joint support for pets, PetLab Co. is the brand I trust.”

The company follows the latest science, conducts its own clinical research, and formulates all products in the United Kingdom. They’re also a proud member of UK Pet Food, reflecting their commitment to nutritious, responsibly produced products.

PetLab Co. Product Line: A Deep Dive

PetLab Co. offers a range of supplements targeting the most common health issues in dogs. Here’s a breakdown of their core offerings:

1. PetLab Co. Probiotic Chews

The PetLab Co. Probiotic Chew is arguably the brand’s flagship product—and for good reason.

Each pork-flavored soft chew delivers 3 billion CFU of spore-forming Bacillus probiotics (Bacillus coagulans, B. clausii, and B. subtilis). These strains are specially selected for their ability to survive stomach acid and reach the intestines, where they colonize and support digestive and immune health.

The formula also includes prebiotic FOS and GOS fibers (which act as fuel for good bacteria) and a postbiotic blend of yeast that produces short-chain fatty acids to support gut lining integrity.

Key Benefits:

• Supports digestive health and stool consistency
• Promotes immune function through the gut-immune connection
• May help reduce seasonal allergy symptoms like paw licking and scratching
• Easy-to-administer soft chew format that even picky eaters love

Real Customer Review: “I have been using probiotic chews for over 2 years. I have a healthy dog. No vomiting, diarrhea, or scratching.” — Deborah

2. PetLab Co. Joint Care Chews

If your dog is slowing down, the PetLab Co. Joint Care Chews might be a game-changer.

These salmon-flavored chews contain the world’s first New Zealand green-lipped whole-mussel extract, MMP50™—a powerful ingredient that supports joint flexibility and overall bone health.

Key Ingredients:

• Glucosamine HCl (450 mg) – targets occasional joint stiffness
• MMP50™ (150 mg) – supports hip and joint flexibility
• Curcugen® (25 mg) – a clinically studied curcumin that supports normal inflammatory response
• Anchovy oil (150 mg) – rich source of omega-3 fatty acids

Expert Rating: Hepper Pet Resources gave PetLab Co. joint products an overall rating of 4.75 out of 5 stars, with 5/5 for ingredients and 4.8/5 for effectiveness.

Real Customer Review: “I’ve been giving my dogs this for many years now and it’s been a massive help to the arthritis in their joints. Highly recommended.”

3. PetLab Co. Dental Formula

Brushing your dog’s teeth is a battle many pet parents lose. PetLab Co.’s Dental Formula offers a simpler solution.

This tasteless, odorless water additive targets tartar buildup and supports fresher breath. Simply mix 1 teaspoon with 8 ounces of fresh water daily.

Key Benefits:

• Supports healthy teeth and gums without brushing
• Colorless and odorless—dogs don’t notice it
• Targets tartar buildup and bad breath

Real Customer Review: “This product is easy to use, works well to inhibit bad breath and tartar, has no odor of its own, and does not seem to have any flavor that my dog would not like.”

4. PetLab Co. Allergy & Immune Chews

Seasonal allergies can make dogs miserable with constant scratching, paw licking, and skin discomfort. PetLab Co. Allergy & Immune Chews are designed to support normal immune function and help maintain a healthy response to seasonal allergens.

The formula combines probiotics, colostrum, omega-rich oils, and yeast postbiotics to support gut health and seasonal allergy relief.

Key Benefits:

• Supports immune health
• May help with seasonal allergy signs like paw licking and scratching
• Available in three sizes based on dog weight

Real Customer Review: “My dog’s seasonal allergies improved big time and she is not licking her paws anymore.” — Jenna

PetLab Co. Reviews: What Customers Are Really Saying

The Good: Thousands of Happy Pet Parents

PetLab Co. has amassed over 11,000 reviews on Trustpilot and thousands more across platforms like ConsumerAffairs and the brand’s own website.

Common themes in positive PetLab Co. reviews:

✅ Digestive Health Improvements – Many owners report better stool consistency and reduced digestive issues

✅ Enhanced Skin and Coat Condition – Dogs experience shinier coats and less scratching

✅ Palatability – The pork-flavored soft chews are well-received even by picky eaters

✅ Ease of Use – The soft chew format makes daily supplementation simple

✅ Noticeable Results – “We got the powder and it really made a big difference in our dog’s teeth. I took a picture of her teeth before we started her on it and then another one a couple weeks ago, and I couldn’t believe how much different they look.”

The Not-So-Good: Complaints and Concerns

No brand is perfect, and PetLab Co. reviews do include some criticisms.

Common complaints:

❌ Subscription Billing Issues – Some customers report unexpected charges or difficulty canceling subscriptions

❌ Price – While the initial trial price is attractive, the subscription price can feel steep for some budgets

❌ Mixed Results – Not every dog responds the same way; some owners report seeing no noticeable improvement

❌ Return Policy – Only unopened items are returnable

BBB Complaints: The Better Business Bureau shows 126 total complaints over the past three years, with 53 closed in the last 12 months. While this is a significant number, it’s worth noting that the company has responded to many of these complaints.

The Verdict from Professional Reviewers

Vetstreet tested PetLab Co. products and praised their ease of administration, palatability, and premium ingredients.

Hepper rated PetLab Co. joint products 4.75/5 stars, highlighting the unique ingredients like Curcugen and MMP50™ that you won’t find in other dog joint supplements.

ConsumerAffairs notes that PetLab Co. offers quality ingredients, free shipping on all orders, and subscription benefits. However, they also point out the limited cat products and restrictive return policy as drawbacks.

Key Insights: What You Need to Know Before Buying PetLab Co.

1. Consistency Is Everything

PetLab Co. products aren’t magic pills. It can take up to 90 days of daily use to see noticeable benefits. If you’re not willing to commit to a daily routine, these supplements may not deliver the results you’re hoping for.

2. Start Before Allergy Season

For the Allergy & Immune Chews, the company recommends starting 2–4 weeks before allergy season (spring: February–March, fall: July–August). Planning ahead makes a significant difference.

3. Watch Your Subscription

If you opt for the subscription model (which offers the best value), keep track of your billing and cancellation windows to avoid unwanted charges. Many complaints stem from subscription management issues.

4. Consider Your Dog’s Size

PetLab Co. offers different sizes for different dog weights—especially important for the Allergy & Immune Chews (Small: under 25 lbs, Medium: 25–75 lbs, Large: over 75 lbs) and Joint Care Chews. Make sure you’re ordering the right size for your pup.

5. It’s Not a Substitute for Veterinary Care

While PetLab Co. collaborates with veterinary professionals, these supplements are not a replacement for regular veterinary checkups. Always consult your vet before starting any new supplement regimen.

PetLab Co. vs. The Competition: How Does It Stack Up?

Feature	PetLab Co.	Typical Competitor
Probiotic Strains	3 spore-forming Bacillus strains	Often 1-2 strains
CFU Count	3 billion per chew	Varies widely
Unique Ingredients	MMP50™, Curcugen®	Standard glucosamine/chondroitin
Vet Collaboration	Yes, with NASC & GMP certifications	Not always
Customer Base	4.5+ million pet parents	Varies
Subscription Model	Yes, with discounts	Often available
Free Shipping	Yes, on all orders	Not always

What sets PetLab Co. apart is their commitment to science-backed, premium ingredients that you won’t find in typical pet store supplements. Their use of spore-forming probiotics that survive stomach acid and clinically studied ingredients like Curcugen® gives them a significant edge.

The Future of PetLab Co.: What’s Next?

With BC Partners’ investment, PetLab Co. is poised for significant growth. The partnership aims to accelerate innovation, expand the product portfolio, and increase market presence.

Michael Chang, Partner at BC Partners, noted: “PetLab Co. has distinguished itself as a standout performer in the growing, wellness-focused pet supplement category.”

For pet parents, this could mean more innovative products, expanded availability, and continued commitment to quality in the years ahead.

Frequently Asked Questions (FAQ)

1. What are PetLab Co. probiotic chews, and how do they work?

PetLab Co. Probiotic Chews are daily soft chews containing 3 billion CFU of spore-forming Bacillus probiotics (Bacillus coagulans, B. clausii, and B. subtilis). These strains survive stomach acid, reach the intestines, and colonize the gut to support digestive health, immune function, and overall wellness. The chews also include prebiotics and postbiotics to maintain a healthy intestinal tract.

2. Are PetLab Co. products safe for dogs?

Yes. PetLab Co. products are formulated with premium, science-backed ingredients and have earned certifications from the National Animal Supplement Council (NASC) and NSF for Good Manufacturing Practices (GMP). They collaborate with veterinary professionals and conduct clinical research. However, always consult your vet before starting any new supplement, especially if your dog has underlying health conditions.

3. How long does it take for PetLab Co. probiotic chews to work?

Results vary by dog, but most dogs see benefits within 1–3 months of daily use. Some dogs show earlier signs of improved digestive comfort, while others may take the full 90 days to experience noticeable changes.

4. Where can I buy PetLab Co. products?

You can purchase directly from the official PetLab Co. website (thepetlabco.com). Products are also available on Amazon, Chewy, and PetSmart. Buying directly from the website often provides the best subscription deals and free shipping.

5. What is PetLab Co.’s return policy?

PetLab Co. offers a 30-day return policy from the date of delivery confirmation. However, only unopened items are eligible for return. This is a key consideration before purchasing.

6. Does PetLab Co. offer a subscription discount?

Yes. PetLab Co. offers a subscription service that provides savings compared to one-time purchases. Customers can manage their subscriptions through their online account. Be sure to review the subscription terms and cancellation policy to avoid unexpected charges.

7. Is PetLab Co. available in stores?

Yes. PetLab Co. products are available at major retailers including PetSmart and Chewy. However, availability may vary by location, so it’s best to check the store’s website or call ahead.

8. What do PetLab Co. reviews say about the products?

PetLab Co. reviews are generally positive, with over 11,000 reviews on Trustpilot and thousands more on ConsumerAffairs and the brand’s website. Customers frequently praise improvements in digestion, skin and coat condition, and allergy symptoms. Some complaints mention subscription billing issues and the price point.

9. Is PetLab Co. a legitimate company?

Yes. PetLab Co. is a legitimate company founded in 2018, headquartered in London, and backed by BC Partners—the investment firm behind Chewy and PetSmart. The company holds NASC and GMP certifications and has served over 4.5 million pet parents.

10. Does PetLab Co. offer products for cats?

PetLab Co. offers limited products for cats, with the Dental Formula being one of the few cat-friendly options. Most of their product line is specifically designed for dogs.

Final Verdict: Is PetLab Co. Worth It?

After weeks of research, analyzing thousands of PetLab Co. reviews, and understanding the science behind their products, here’s my honest take:

PetLab Co. is a legitimate, science-backed pet supplement brand that has helped millions of dogs live healthier, more comfortable lives. Their commitment to premium ingredients, veterinary collaboration, and clinical research sets them apart from many competitors.

The Pros:

• Science-backed, premium ingredients
• NASC and GMP certifications
• Over 4.5 million satisfied customers
• Easy-to-administer soft chew format
• Free shipping on all orders
• Subscription discounts available

The Cons:

• Results take time (up to 90 days)
• Subscription model requires careful management
• Price point may be high for some budgets
• Limited cat products
• Restrictive return policy (unopened items only)

Who should buy PetLab Co. products?

• Pet parents willing to commit to a daily routine
• Dogs with digestive issues, seasonal allergies, joint stiffness, or dental concerns
• Owners who prioritize premium, science-backed ingredients
• Those comfortable with subscription models

Who should look elsewhere?

• Pet parents expecting overnight results
• Those on a tight budget
• Cat owners (limited options)
• Anyone uncomfortable with subscription commitments