K9Biolabs Ear-to-Guts Daily Defense

90-DAY 100% MONEYBACK GUARANTEE

5000+

REVIEWS

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"My dog’s ears smell fresher, and she’s scratching way less since starting Gut-to-Ear Daily Defense. She seems happier and more comfortable - we’re so relieved!”

— Sarah L., United States

K9-B1 Gut-to-Ear Daily Defense

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K9 B1 Gut-to-Ear Daily Defense is designed to target gut imbalance - the hidden root cause behind ear odor, itching, and recurring ear infections.

Just one daily scoop helps restore balance from within - naturally supporting your dog’s digestion, immune health, and long-term ear comfort.

✅ Balances gut microbiome for healthier digestion and reduced yeast overgrowth.

✅ Supports immune function to defend against recurring ear problems.

✅ Promotes clear, odor-free ears without harsh wipes or medications.

✅ Improves overall skin & coat health for a happy, comfortable pup.

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◉ Ships from our Ohio warehouse by Thu, Sep 11

In Stock

Expected delivery in 4 to 7 business days

Happier Ears or It’s Free!

If you don't notice fresher-smelling ears, less scratching, and improved comfort within 90 days of the product being delivered, return it within 90 days for a full refund*

How Does It Work?

The Science Behind Gut-to-Ear Daily Defense

Most recurring ear problems are more than just surface issues - they often start in the gut. When gut bacteria are imbalanced or nutrient absorption is low, it can trigger yeast overgrowth, inflammation, and chronic ear irritation.

To keep your dog healthy from the inside out, their body needs key nutrients and support like:

✅ Prebiotics – nourish good bacteria for a balanced microbiome
✅ L-Glutamine – supports gut lining integrity and nutrient absorption

And it also benefits from things like:

✅ Zinc & Vitamin C – promote immune function and skin health
✅ Antioxidants – help fight inflammation and reduce oxidative stress

Without consistent gut support, your dog’s immune system may struggle, which can lead to itchy ears, head shaking, and foul-smelling wax buildup.

K9 B1 Gut-to-Ear Daily Defense combines gut-strengthening nutrients and immune-supporting compounds to help your dog:

🟩 Maintain a healthy balance of gut bacteria
🟩 Defend against yeast overgrowth and recurring infections
🟩 Support ear health, skin comfort, and overall immunity

Help your pup feel comfortable again — with clean, fresh ears and a happy tummy.

What Can Gut-to-Ear Daily Defense Help With?

👂 persistent ear odor
balances gut bacteria and reduces yeast overgrowth - helping ears stay fresh and smell-free.

🐾 excessive scratching & head shaking
supports immune response and skin health, which can ease irritation and calm itchy ears.

🦠 recurring ear infections
strengthens gut and immune defenses to lower the chance of stubborn, repeat ear issues.

💩 digestive upset
prebiotics and gut-supporting nutrients promote smooth digestion and nutrient absorption.

🛡️ weakened immune system
zinc, vitamin c, and antioxidants help fortify your dog’s immune system year-round.

✨ overall comfort & well-being
supports skin and coat health, helping your pup feel comfortable, active, and happy.

When Will I See Results?

📅 in the first few days
many pet parents notice their dog scratching less and shaking their head less within the first few days of starting gut-to-ear daily defense.
as the gut begins to rebalance, you may also notice improved stool quality and a calmer, more comfortable pup.

📅 after 2–3 weeks of daily use
with continued use, dogs often show clearer ears, reduced odor, and less buildup of wax.
their immune system becomes more resilient, and many owners notice better digestion, shinier coats, and overall happier behavior.
this is when many pet parents say their dog “finally seems comfortable again.”

📈 with ongoing use
consistency is key. making gut-to-ear daily defense part of your dog’s daily routine helps maintain a balanced gut and healthy immune defenses.
over time, dogs typically experience consistently fresh-smelling ears, fewer flare-ups, and better overall health and vitality.

Who Can Use It?

k9 biolabs gut-to-ear daily defense is made for dogs who need balanced digestion, strong immune support, and consistently fresh, comfortable ears - naturally.

it’s especially helpful for:

dogs with recurring ear odor, yeast buildup, or infections
pups that scratch or shake their heads frequently
dogs with sensitive stomachs or occasional digestive upset
breeds prone to chronic ear issues (like labradors, cocker spaniels, frenchies)
pet parents who want a natural, daily defense to keep ears clean and healthy

it’s safe for daily use and gentle on the stomach - with no antibiotics, no harsh chemicals, and no synthetic additives.

if you want your dog to feel comfortable, happy, and itch-free again… this was made for them.

Results or Full Refund Guarantee

your order today is protected by our 90-day money-back guarantee. if you don’t notice fresher-smelling ears, reduced scratching, or overall improvement in your dog’s comfort - or if you’re simply not satisfied for any reason - just reach out within 90 days. we’ll issue a full refund of your purchase price.

"My dog’s ears smell fresher, and she’s scratching way less since starting Gut-to-Ear Daily Defense. She seems happier and more comfortable - we’re so relieved!”

— Sarah L., United States

Modern Dog Nutrition May Be Falling Short

Most commercial dog foods don’t provide all the support your pup needs for a balanced gut and healthy immune system. Over-processing, fillers, and lack of fresh nutrients can leave dogs vulnerable to gut imbalance and chronic issues like ear odor and infections.

Many dogs may not be getting enough key nutrients and prebiotics from their daily food alone - which can make it harder for their gut and immune system to function at their best.

Pet parents often notice signs like itchy ears, recurring wax buildup, tummy troubles, or low energy - all of which can be linked to poor gut health.

Supporting your dog’s microbiome with targeted nutrients can help maintain overall wellness - keeping their ears fresh, their digestion smooth, and their immune system strong.

The Science-Backed Formula Trusted by Pet Parents

Gut-to-Ear Daily Defense was carefully formulated to address the root cause of recurring ear problems - poor gut balance and a weakened immune system. By targeting the gut microbiome, this supplement helps prevent the cycle of odor, scratching, and constant cleaning.

Each scoop is packed with gut-supporting nutrients and immune boosters, including prebiotics, L-glutamine, zinc, and antioxidants - chosen to restore balance from the inside out and support year-round ear health.

These nutrients are known to:

Balance gut flora to reduce yeast overgrowth and support smooth digestion
Strengthen immune defenses to fight off recurring ear issues
Soothe irritation and promote healthier, comfortable ears
Support skin and coat health for a happy, thriving pup

With Gut-to-Ear Daily Defense, you’re giving your dog a natural, science-based way to stay itch-free, odor-free, and full of life - every single day.

Real Feedback from Pet Parents

In a recent customer survey, dog owners reported:

72%

Noticed fresher-smelling ears within the first 2 weeks*

64%

Said their dog scratched or shook their head less*

81%

Reported less ear wax buildup and irritation after 30 days*

89%

Said their dog seemed happier and more comfortable overall*

Results based on a voluntary, self-reported customer survey conducted by K9 Biolabs in 2024. Individual results may vary.

One Scoop. Complete Gut & Ear Support.

Unlike many pet supplements with long, hard-to-pronounce ingredient lists, Gut-to-Ear Daily Defense keeps it simple with a targeted blend of gut-strengthening prebiotics, immune-supporting nutrients, and antioxidants. Every scoop is designed to work with your dog’s body - restoring gut balance and preventing recurring ear problems naturally.

Here’s what Gut-to-Ear Daily Defense delivers in every serving:

Gut-Supporting Nutrients:

Prebiotics feed good bacteria to balance the gut microbiome
L-Glutamine helps strengthen and repair the gut lining for better nutrient absorption

Immune & Skin Support:

Zinc & Vitamin C promote a strong immune system and healthy skin barrier
Antioxidants reduce inflammation and help fight yeast overgrowth

Overall Comfort:

Supports smooth digestion and reduces tummy upset
Helps maintain clean, odor-free ears with less itching and head shaking

With Gut-to-Ear Daily Defense, you’re giving your dog daily, targeted support to keep their gut healthy, their ears fresh, and their tail wagging.

The K9 Biolabs Promise

Clean & Traceable Ingredients

Freshly Formulated

Grain-Free

Non-GMO

No Artificial Additives

Manufactured in a GMP-Certified, FDA-Registered Facility

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What You Might Expect from Daily Use of Gut-to-Ear Daily Defense

1 Week

Many pet parents notice less scratching and head-shaking in the first few days.
Early digestion improvements as the gut begins to rebalance.

1 Month

Clearer, fresher-smelling ears with less wax buildup.
Comfortable rest and happier behavior as immune support kicks in.

2 Months

Consistent gut support helps reduce flare-ups from yeast imbalance.
Shinier coat and calmer skin from improved nutrient absorption.

3 Months

Stronger year-round defenses; fewer recurring ear issues.
Easier ear maintenance with routine cleaning.

6 Months

Comfort stays steady with ongoing use; pups remain itch-free and active.
Owners report stable digestion and overall vitality.

12 Months

Becomes part of a long-term routine that keeps gut balanced and ears fresh.
Helps maintain comfort through seasons and lifestyle changes.

*Consistency matters. Individual dogs may respond at different speeds based on diet, age, and overall health.

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Why Gut-to-Ear Daily Defense Beats Ear Wipes & Medicated Drops

Other

Targets the root cause of ear issues (gut imbalance)

Daily prebiotic & immune support

Prevents recurring problems instead of just masking them

Powder form – easy to sprinkle on food

Safe for long-term use

Supports overall health – digestion, immunity, skin & coat

No chemical smell or residue

No artificial flavors, fillers, or antibiotics

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frequently asked questions

Everything you need to know, right at your fingertips.

Will this fix my dog’s “corn chip” ear smell?

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Yes! The odor you’re noticing is often caused by a yeast imbalance in the ear canal. Ear Fresh is specifically formulated with probiotics and natural antifungals to correct that imbalance-so you can expect reduced odor, less scratching, and happier ears.

How long before I see relief from yeast symptoms?

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Most dog parents begin to notice improvements within 2–3 weeks-odor starts to dissipate, and scratching calms down. For best results, we recommend giving Ear Fresh consistently for 6–8 weeks to fully rebalance the ear environment.

My dog gets recurring yeast ear infections—can Ear Fresh help reduce the frequency?

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Absolutely. Ear Fresh targets yeast imbalance at its source, helping strengthen natural defenses and reduce the likelihood of future flare-ups. Many customers report fewer infections when using it daily over several months (though you should still consult your vet for active or severe cases).

Is there any risk of my dog overdosing on their supplement?

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Our supplements are carefully balanced with your dog’s weight in mind, so we always recommend that you stick to the suggested dosage.

In the event that your dog accidentally consumes more than the recommended dose, consult your vet as soon as possible.

What will my dog's supplement taste like?

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Our supplement is crafted with a naturally mild and palatable flavor that blends seamlessly with your dog’s daily meals. Made from all-natural, human-grade ingredients, it’s free from fillers, artificial additives, and common allergens - and 100% safe for canine consumption.

If your pup happens to be picky, simply mix the powder into their food or combine it with a favorite snack like plain yogurt or dog-friendly peanut butter.

And if after that they still don’t take to it, we proudly stand behind our 60-day satisfaction guarantee - simply return the product for a full refund.

Are your dog supplements allergen-free?

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You know it!

Along with being gluten-free, pesticide-free, and non-GMO, all of our supplements are either allergen-free or hypoallergenic.

Is shipping free?

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We offer free 7-10 day business shipping on all domestic orders.

Alternatively, if you would to receive your order sooner, you can select our paid 2-day express shipping option at checkout.

Can I cancel my subscription at any time?

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Of course you can cancel your subscription at any time!

The quickest way to do this is by logging onto your account and following the prompts to cancel. Your request will be processed immediately and your card won't be charged from that point forward.

Alternatively, you can contact one of our friendly team members at hello@k9biolabs.com to request a cancellation of your subscription. Please note, however, that it may take up to 1 business day for them to process your request.

What is your return policy?

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Happy pet parents make happy pets. So it’s within our best interests to keep you happy.

In the event that you change your mind about one of our products within 60 days of receiving it, we’ll issue a full refund.

Simply email us at hello@k9biolabs.com to discuss how you would like to return the product. Note: You will be responsible for the cost of returning the product back to us.

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*These statements have not been evaluated by the Food and Drug Administration. K9 Biolabs® supplements are not intended to diagnose, treat, cure, or prevent any disease in animals. Reviews and testimonials on k9biolabs.com reflect individual experiences; results vary by dog and are not intended to represent or guarantee that any pet will achieve the same results.

Information on this website is for educational purposes only and is not a substitute for advice, diagnosis, or treatment from your veterinarian or other qualified animal-health professional. Do not use this information to diagnose or treat a health problem or disease for your pet, or to change prescribed medications. Always read and follow the product label. If your dog has-or you suspect your dog has-a medical condition, is pregnant or nursing, or is taking medication, promptly consult your veterinarian.