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Jar of Protect soil-based probiotics, 4.1 ounces
Includes soil-based probiotics for naturally balanced gut flora, supports the body from pesticide and toxin exposure product image
Protect probiotics dosage guide product image
Saccharomyces Boulardii, Bentonite Clay, Chlorella, Humic & Fulvic Acid, Blueberry, Probiotics, and Dandelion & Burdock Root product image
Main active ingredients per 1 tsp: 1.45 g of Blueberry, 1.4 g of Bentonite Clay, and 200 mg of Chlorella Pyrenoidosa product image
Made with love in the USA, recycled packaging, 100% organic ingredients, veterinarian formulated product image
Certified plastic negative product, we remove 2x as much plastic waste from nature as our packaging uses product image
Jar of Protect soil-based probiotics, 4.1 ounces
Includes soil-based probiotics for naturally balanced gut flora, supports the body from pesticide and toxin exposure product image
Protect probiotics dosage guide product image
Saccharomyces Boulardii, Bentonite Clay, Chlorella, Humic & Fulvic Acid, Blueberry, Probiotics, and Dandelion & Burdock Root product image
Main active ingredients per 1 tsp: 1.45 g of Blueberry, 1.4 g of Bentonite Clay, and 200 mg of Chlorella Pyrenoidosa product image
Made with love in the USA, recycled packaging, 100% organic ingredients, veterinarian formulated product image
Certified plastic negative product, we remove 2x as much plastic waste from nature as our packaging uses product image
Best Seller

Protect

This product works amazing! My 2 year old puggle has gut issues and ever since I've had her on the protect, she's never been healthier!
Holli E.
Verified Buyer
size
Protect 115.5g
Protect 231g

Protect is the next generation of natural probiotics for dogs. A scientific blend of soil-based probiotics, probiotic yeast and detoxifying herbs and clays.

  • Helps detoxify from heavy metals & environmental toxins
  • Maintains proper gut health
  • Veterinarian formulated
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$25.49
$29.99
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Large Dog (61-100 lbs)
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$29.99
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Free shipping on orders $49+. Arrives in 2-5 days. Free, easy 60 day returns.

Protect is the next generation of natural probiotics for dogs. A scientific blend of soil-based probiotics, probiotic yeast and detoxifying herbs and clays.

  • Helps detoxify from heavy metals & environmental toxins
  • Maintains proper gut health
  • Veterinarian formulated

This is a Magical Product

"This is a magical product, my dogs LOVE dirt and this gives them a taste of everything they love that is healthy. I give this to all four of my dogs and they dearly love it! I'm so happy to have found this company, they are trustworthy and actually care about the health and happiness of your beloved pets."

Deborah M.

Soil Based Probiotics for Dog Gut Health

A healthy dog starts with a healthy gut. Protect is an expertly crafted blend of soil-based probiotics, clays and naturally occurring molecules from healthy soils. It's the natural way to support a healthy gut in dogs and help them detoxify from heavy metals, pesticides and other environmental toxins.

  • Helps detoxify from environmental toxins: The bentonite clay, chlorella and humic/fulvic acids in Protect naturally support dogs from everyday exposure to heavy metals, pesticides & environmental toxins. 
  • Next-generation probiotics: Soil-based probiotics are hardier than typical probiotics and less likely to be damaged by stomach acids.
  • Rich in antioxidants: Contains organic blueberries to help maintain a healthy gut flora, support healthy brain function and help decrease oxidative damage.
  • Expertly crafted: Veterinarian formulated based on scientific research and third party tested for purity and potency.

Premium Ingredients

Bacillus subtilis
Bacillus subtilis

Bacillus subtilis is a probiotic bacteria found in soil and the canine gut, making it one of the best probiotics for dogs needing better gut and immune health. B. subtilis is known for its ability to support a healthy gut microbiome, enhance digestive health and support immune function. It produces byproducts that can help suppress harmful bacteria, promote the growth of beneficial bacteria and assist with nutrient absorption. Additionally, Bacillus subtilis has been associated with digestive enzyme production, aiding in the digestion of food and the supporting against gastrointestinal disorders.

Soil-based probiotics, like Bacillus subtilis, are often considered superior to other probiotics due to their exceptional resilience and ability to survive the acidic environment of the stomach, ensuring they reach the intestines where they can be most beneficial. Their inherent stability means they don't require refrigeration and maintain potency over time and their robust nature allows for a potentially broader impact on the gut microbiome.

Bacillus coagulans
Bacillus coagulans

Bacillus coagulans is a soil-based probiotic that supports gut health by enhancing the balance of the intestinal microbiota, contributing to improved digestion and reducing symptoms of occasional bloating, gas, and diarrhea. It also supports the immune system by producing short-chain fatty acids, which are crucial for gut health and promotes the body's gut and immune health.

Soil-based probiotics, like Bacillus coagulans, are often considered superior to other probiotics due to their exceptional resilience and ability to survive the acidic environment of the stomach, ensuring they reach the intestines where they can be most beneficial. Their inherent stability means they don't require refrigeration and maintain potency over time and their robust nature allows for a potentially broader impact on the gut microbiome.

Saccharomyces boulardii
Saccharomyces boulardii

Saccharomyces boulardii is a probiotic yeast that has been shown to support gut health, especially during antibiotic use, travel and infections. It helps maintain the natural flora in the gastrointestinal tract, enhancing immune function and a balanced inflammatory response in the gut.

Organic blueberries
Organic blueberries

Wild Blueberries contain more antioxidants than other berries and are very rich in a specific antioxidant called anthocyanins, which support a healthy heart and brain. Blueberries also help maintain a healthy gut flora and help decrease oxidative damage. We choose organic blueberries to minimize exposure to synthetic pesticides and fertilizers, providing a safer and healthier option for your dog.

Bentonite clay
Bentonite clay

Bentonite clay is a natural detoxifier that helps the body remove toxins and heavy metals from the body. It is known to bind to toxins and metals in the gut, supporting a healthy microbiome.

Chlorella pyrenoidosa
Chlorella pyrenoidosa

Chlorella pyrenoidosa, a species of freshwater algae, is highly regarded for being a rich source of antioxidants. It supports immune function, aids in detoxification by binding to heavy metals and other toxins for elimination from the body, and supports gut health due to its high fiber content. Additionally, its antioxidant properties may help reduce oxidative stress.

See all ingredients

Bacillus subtilis (Protect)

Ingredients

Bacillus subtilis
Bacillus subtilis

Bacillus subtilis is a probiotic bacteria found in soil and the canine gut, making it one of the best probiotics for dogs needing better gut and immune health. B. subtilis is known for its ability to support a healthy gut microbiome, enhance digestive health and support immune function. It produces byproducts that can help suppress harmful bacteria, promote the growth of beneficial bacteria and assist with nutrient absorption. Additionally, Bacillus subtilis has been associated with digestive enzyme production, aiding in the digestion of food and the supporting against gastrointestinal disorders.

Soil-based probiotics, like Bacillus subtilis, are often considered superior to other probiotics due to their exceptional resilience and ability to survive the acidic environment of the stomach, ensuring they reach the intestines where they can be most beneficial. Their inherent stability means they don't require refrigeration and maintain potency over time and their robust nature allows for a potentially broader impact on the gut microbiome.

Bacillus coagulans
Bacillus coagulans

Bacillus coagulans is a soil-based probiotic that supports gut health by enhancing the balance of the intestinal microbiota, contributing to improved digestion and reducing symptoms of occasional bloating, gas, and diarrhea. It also supports the immune system by producing short-chain fatty acids, which are crucial for gut health and promotes the body's gut and immune health.

Soil-based probiotics, like Bacillus coagulans, are often considered superior to other probiotics due to their exceptional resilience and ability to survive the acidic environment of the stomach, ensuring they reach the intestines where they can be most beneficial. Their inherent stability means they don't require refrigeration and maintain potency over time and their robust nature allows for a potentially broader impact on the gut microbiome.

Saccharomyces boulardii
Saccharomyces boulardii

Saccharomyces boulardii is a probiotic yeast that has been shown to support gut health, especially during antibiotic use, travel and infections. It helps maintain the natural flora in the gastrointestinal tract, enhancing immune function and a balanced inflammatory response in the gut.

Organic blueberries
Organic blueberries

Wild Blueberries contain more antioxidants than other berries and are very rich in a specific antioxidant called anthocyanins, which support a healthy heart and brain. Blueberries also help maintain a healthy gut flora and help decrease oxidative damage. We choose organic blueberries to minimize exposure to synthetic pesticides and fertilizers, providing a safer and healthier option for your dog.

Bentonite clay
Bentonite clay

Bentonite clay is a natural detoxifier that helps the body remove toxins and heavy metals from the body. It is known to bind to toxins and metals in the gut, supporting a healthy microbiome.

Chlorella pyrenoidosa
Chlorella pyrenoidosa

Chlorella pyrenoidosa, a species of freshwater algae, is highly regarded for being a rich source of antioxidants. It supports immune function, aids in detoxification by binding to heavy metals and other toxins for elimination from the body, and supports gut health due to its high fiber content. Additionally, its antioxidant properties may help reduce oxidative stress.

Humic acid
Humic acid

Humic acid is a natural component of soil and a byproduct of the decomposition of leaves and other plant material by soil-based microorganisms. Humic acid supports a healthy gut and helps detoxify from heavy metals and environmental toxins. It also supplies antioxidants and supports the immune system.

Fulvic acid
Fulvic acid

Like humic acid, fulvic acid is a part of the organic matter in soil, peat and water. Fulvic acid helps detoxify from heavy metals and environmental toxins, supports healthy skin and provides antioxidants.

Organic dandelion root
Organic dandelion root

Dandelion root is renowned for its liver-supporting and detoxifying properties, aiding in the removal of toxins and promoting liver health. It also acts as a natural diuretic, helping to manage fluid retention and support kidney function. Rich in antioxidants, dandelion root can further contribute to a normal inflammatory response.

Organic burdock root
Organic burdock root

Burdock root supports healthy skin and is also rich in antioxidants, which neutralize harmful free radicals. Burdock root also supports liver function and digestion, thanks to its inulin content, a type of soluble fiber that supports healthy gut bacteria.

Feeding Directions

Net Contents: 4.1oz (115.5g)

Body Weight

1-30 lbs
31-60 lbs
61-100 lbs
101+ lbs

Amount per Day

1/2 tsp daily
3/4 tsp daily
1 tsp daily
1 1/2 tsp daily

Daily Cost

$0.50/day
$0.67/day
$1.00/day
$1.30/day

Frequently Asked Questions

Why are soil-based probiotics the smarter choice for dogs?
Why are soil-based probiotics the smarter choice for dogs?

Because they actually survive the trip through your dog’s stomach! These hardy, spore-forming probiotics stay alive and active until they reach the gut — no refrigeration needed.

What makes Saccharomyces boulardii so special?
What makes Saccharomyces boulardii so special?

It’s a beneficial yeast that helps keep your dog’s gut environment balanced. Unlike many probiotics, it isn’t affected by antibiotics and works naturally with your dog’s own good bacteria.

How does Protect support natural detox and cleansing?
How does Protect support natural detox and cleansing?

Protect includes chlorella, bentonite clay, and soil-based probiotics — ingredients known to bind unwanted materials and support the body’s normal detox process every day.

Can I give Protect daily for ongoing gut support?
Can I give Protect daily for ongoing gut support?

Yes! Protect is gentle enough for everyday use and helps maintain a balanced microbiome — especially helpful for dogs exposed to lawns, parks, or city environments.

How does Protect help after antibiotics or vaccines?
How does Protect help after antibiotics or vaccines?

It’s an ideal “recovery” supplement — designed to help restore healthy gut balance and support your dog’s normal immune defenses after life’s occasional stressors.

Does Protect support healthy digestion and stool quality?
Does Protect support healthy digestion and stool quality?

Yes. Its blend of soil-based probiotics and beneficial yeast helps promote normal digestion, consistent stools, and comfortable tummies.

When will I notice results?
When will I notice results?

Most pet parents notice positive changes in stool quality or overall comfort within 1–2 weeks of daily use. Every dog is unique, but consistency pays off!

Can I combine Protect with other Four Leaf Rover products?
Can I combine Protect with other Four Leaf Rover products?

Definitely. It pairs perfectly with Gut Guard or Bovine Colostrum for extra digestive and immune system support.

Is Protect safe for puppies or senior dogs?
Is Protect safe for puppies or senior dogs?

Yes — it’s safe and beneficial for all ages. Start with a smaller amount for young or small dogs and build up to the recommended dose.

Does Protect need to be kept in the fridge?
Does Protect need to be kept in the fridge?

Nope! The soil-based probiotics are shelf-stable, so you can keep Protect in your pantry or take it on the go with no loss of potency.

How is Protect different from regular probiotics?
How is Protect different from regular probiotics?

Regular probiotics are fragile and often don’t survive stomach acid. Protect’s spore-forming strains are built to last — delivering active support right where it’s needed.

Are there any fillers or artificial ingredients?
Are there any fillers or artificial ingredients?

Never. Protect is made with clean, whole-food ingredients — no soy, dairy, gluten, or artificial additives, just pure quality you can trust.

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Protect Reviews

Who We Are

In Memory of Simon & Aaron

The story of Four Leaf Rover started as a tragedy. Our founder Dana Scott lost two dogs from toxic sprays they were exposed to in the fields surrounding her home. In a frantic effort to save her dogs and protect her remaining dog family, Dana connected with most of the leading holistic veterinarians around the world about the most effective natural remedies. As Dana researched remedies, she found nearly all contained hidden or harmful ingredients. Four Leaf Rover began as a promise to Dana's lost dogs that all dogs deserve super premium products with natural ingredients that are thoroughly tested to be low in harmful pesticides and heavy metals. With a mission of quality, transparency and sustainability, Four Leaf Rover is making the world a better place for dogs and the people who love them.
Four Leaf Rover

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Why should natural and eco-friendly products come at a premium price? By championing affordability, we're breaking down barriers, ensuring that dog owners don't have to compromise between their pet's health and their budget.
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Protect

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© 2025, Four Leaf Rover - The content on this website is not meant to replace veterinary advice. Please support the hard working holistic vets who make this information possible. To find a holistic or homeopathic vet near you or to find one who will do phone consultations, visit The Academy Of Veterinary Homeopathy.