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100,000+ 5 Star PetLabCo. Reviews Globally ⭐⭐⭐⭐⭐

Petlab Co. Immune Probiotic + product image with subscription offer
Tailored for Your Dog

Immune Probiotic + - dog probiotics for all seasons

PetLabCo.’s powerful pork-flavoured soft chews target paw licking, head shaking, scratching and seasonal comfort at the source with a blend of probiotics and premium-quality, skin-supporting ingredients.

Tell Me About:

“I recommend PetLabCo. supplements to all of my clients - they are a trusted source of quality supplementation for their dogs.”
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Dr. Roxana Bordbar

US DVM, Vet Consultant to PetLabCo.

Expected delivery in 3-5 business days

All of our products are shipped from Canada

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We have impacted over 5.3 million dogs globally

Triple-action seasonal
support for dogs

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Shipped from Canada

Timely deliveries to help keep your dog’s health on track.

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Tailored Formula

Our breakthrough formula is specifically tailored to meet the needs of all dog sizes, ensuring that every pup receives the appropriate amount of health supplements and support.

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Backed by Research

PetLabCo. worked closely with experts to design an immune-supporting formula. The triple blend of biotics can help create a shield around your dog's immune system to support them from seasonal irritants.

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Seasonal Support

Immune Probiotic + is the easy route to a more comfortable and happier dog. With a supported immune response, your pup can play outside, roll in the grass, and sniff around carefree all year long.

Vet-reviewed formula

“PetLabCo.’s approach to supporting normal yeast production, can do wonders for itchy skin and overall health.”

Dr. Roxana Bordbar

US DVM, Vet Consultant to PetLabCo.

Research-backed active ingredients

Probiotics

Probiotics

Colostrum (from Bovine)

Colostrum (from Bovine)

Krill Oil

Krill Oil

Yeast Extract

Yeast Extract

Prebiotics (FOS & GOS)

Prebiotics (FOS & GOS)

Borage Seed Oil  (Borago officinalis seed)

Borage Seed Oil  (Borago officinalis seed)

Vitamin E (dl-alpha Tocopheryl acetate)

Vitamin E (dl-alpha Tocopheryl acetate)

Cutting-edge science, unmatched quality

We stay at the forefront of pet health by combining the latest scientific research with expert insights. Every formula is carefully crafted to deliver the highest-quality ingredients for optimal pet well-being.

Scientifically Backed Ingredients

Each ingredient in our immune support dog chews is backed by extensive scientific research

Reviewed by Vets

Every formula has been thoroughly reviewed by a veterinary expert

Third-Party Tested

Rigorously tested for quality

100,000+ Five-Star Reviews Globally

PetLabCo. is trusted by thousands of pet parents for real results

Daily directions for use for optimal results

Dog Size

Daily/Tub size

Small

Under 11 kg

1 soft chew/Small

Medium

11 – 34 kg

1 soft chew/Medium

Large

Over 34 kg

1 soft chew/Large

Take your dog’s health & comfort to the next level

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Supports Gut & Immune Health

Formulated with probiotics, prebiotics, and postbiotics to support digestive health and immune system function.

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Targets Intermittent Itchiness

Each soft chew is designed to support normal skin health and help with occasional paw licking, scratching, and occasional discomfort.

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Optimal Skin & Coat Comfort

Includes omega fatty acids and colostrum to help maintain healthy skin and a comfortable, glossy coat.

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Seasonal Changes

A healthy gut supports a balanced immune response, which may help with seasonal sensitivities like head shaking and paw chewing.

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Tailored for Every Dog

Available in sizes for small, medium, and large dogs aged 12 weeks and older – so every pup gets the right amount, every day.

What to expect

86% of customers using our best-selling probiotics are seeing results after 90 days1

A happier, healthier pup – with each soft chew

Seasonal comfort

Balanced yeast levels

Supported gut & immune function

Tasty daily soft chew

Month 1

Gut support begins. Probiotics, prebiotics, and postbiotics help support the microbiome.

Month 2

You may notice less scratching, licking, and head shaking. Yeast levels start to balance.

Month 3

Noticeably calmer skin and more comfort during seasonal changes.

1 - Results are based on feedback from a September 2025 survey of US PetLabCo. subscribers who reported using Probiotic Chews daily or almost daily for 90+ days (n=307). US product formulation may vary slightly from Canada Immune Probiotic +.

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Rated 4.5

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Rated 4.0

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Rated 4.3

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Rated 4.7

Trusted by pet parents worldwide

Reviews of PetLabCo. Immune Probiotic +2

Why subscribe?

Our products are designed for long-term use to deliver lasting results. That's why we offer tailored subscription options—so you can save more while staying consistent. Choose a monthly subscription and get up to 44% off every month.

A 1 Tub Subscription:

Immune Probiotic +20% OFF
CA$43.95CA$54.94
Shipping
FreeCA$4.99
Total
CA$43.95CA$59.93
Total Savings CA$15.98

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Frequently asked questions

The triple action probiotic blend included in our chews is made up of prebiotics, probiotics, and postbiotics — all of which come together to support your dog’s gut. Considering about 80% of your dog’s immune cells live in their gut3, this in turn supports their immune system.

Our Immune Probiotic + chews offer a unique, triple-action formula that targets dog seasonal allergies, supports gut and immune health, as well as promotes healthy skin and coat conditions. Unlike standard dog supplements, these soft chews include a blend that includes probiotics for dogs, formulated to support your dog's gut health, which is fundamental to their immune response. This advanced formula integrates prebiotics, postbiotics, potent antioxidants, omega fatty acids, and colostrum, offering a simple approach to managing occasional dog allergies.

These soft chews are designed to target occasional discomforts associated with seasonal and occasional allergies. They can support a healthy immune response, maintain gut health, and contribute to lustrous skin and coats. By providing the best dog probiotic blend for your pup, this multi-faceted approach ensures your dog receives a broad spectrum of health benefits in one daily soft chew. 

Yes, dogs can (and do!) develop seasonal allergies – just like people do. Certain environmental triggers can lead to occasional allergies in our canine companions. Signs of seasonal allergies in dogs may include occasional watery eyes, tear stains, itching, paw licking, skin sensitivities, and sneezing. We recommend reaching out to your veterinarian if you suspect your dog has seasonal allergies.

Seasonal dog allergy soft chews formulated with probiotics can be a helpful tool for pet parents whose dogs experience discomfort from occasional allergies. These health supplements support a dog’s immune response and help to maintain normal histamine levels. You should consult your veterinarian before using any seasonal dog allergy supplement if you are unsure.

We recommend introducing Immune Probiotic + soft chews to your pup’s daily routine slowly when they are over 12 weeks old. If you have any questions, please speak to your veterinarian. 

Our Immune Probiotic + soft chews are pork-flavoured, and dogs love the taste! We're always looking to enhance our product line, so additional flavours may be introduced in the future.

Our dog probiotics are made to accommodate a variety of dietary preferences. However, if your dog has specific allergies or dietary restrictions, please consult with your veterinarian before adding new supplements to their diet to ensure safety and compatibility.

If you accidentally give your dog too many soft chews, see a veterinarian as soon as possible. If you’re unsure how many soft chews to give your dog, please see the Directions For Use on the product label.

Yes, you can give your dog both health supplements at the same time.

Benadryl, the brand name for diphenhydramine, is a drug and should only be administered under veterinary supervision. Please consult your vet before giving your dog Benadryl. 

Immune Probiotic + soft chews were specifically formulated for dogs and should not be given to cats.

1 - Results are based on feedback from a September 2025 survey of US PetLabCo. subscribers who reported using Probiotic Chews daily or almost daily for 90+ days (n=307). US product formulation may vary slightly from Canada Immune Probiotic +.

2 - Results may vary. Not intended for human consumption. Please consult your veterinarian regarding any change in treatment or supplementation.

3 - Pilla, R., & Suchodolski, J. S. (2019). The role of the canine gut microbiome and metabolome in health. Frontiers in Veterinary Science, 6, 498.

Your Most Trusted Pet Health Optimization Partner™

The information contained within this site is not intended as a substitute for professional medical or veterinary advice. PetLabCo. is not intended to diagnose, treat, cure or prevent any disease. If your pet has, or you suspect your pet has any medical condition, you are urged to consult your veterinarian. Medical conditions can only be diagnosed by a licensed veterinarian. These statements have not been evaluated by the Food and Drug Administration. Results May Vary. Not intended for human consumption. Please consult your veterinarian regarding any change in treatment or supplementation.

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