“My Cat Was In Kidney Failure And Refusing To Eat. Two Weeks On Blisso And She Was At Her Bowl Every Morning.”

Try Blisso Advanced Cat Probiotic: Restore Appetite, Support Kidney Health, Rebuild Energy, And Bring Your Cat Back To Herself In As Little As 14 Days

🐱 110,000+ verified customers
62,000+ reviews
🌟 4.8 stars
🏆91% of cats improve appetite

110,000+ bottles sold

“Her kidney numbers were getting worse every 90 days. After six weeks on Blisso they finally went the other way.” — Gloria K. 
“Her kidney numbers were getting worse every 90 days. After six weeks on Blisso they finally went the other way.” — Gloria K. 

“My Cat Was In Kidney Failure And Refusing To Eat. Two Weeks On Blisso And She Was At Her Bowl Every Morning.”

Try Blisso Advanced Cat Probiotic: Restore Appetite, Support Kidney Health, Rebuild Energy, And Bring Your Cat Back To Herself In As Little As 14 Days

🐱 110,000+ verified customers
62,000+ reviews
🌟 4.8 stars
🏆91% of cats improve appetite

110,000+ bottles sold

“My Cat Was In Kidney Failure And Refusing To Eat. Two Weeks On Blisso And She Was At Her Bowl Every Morning.”

Try Blisso Advanced Cat Probiotic: Restore Appetite, Support Kidney Health, Rebuild Energy, And Bring Your Cat Back To Herself In As Little As 14 Days

🐱 110,000+ verified customers

62,000+ reviews
🌟 4.8 stars

 🏆 91% of cats improve appetite

110,000+ bottles sold

“Her kidney numbers were getting worse every 90 days. After six weeks on Blisso they finally went the other way.” — Gloria K. 

The Kidney Cat Formula Vets Are Now Recommending

Over 110,000 Cat Owners Have Helped Their Cats Eat Again, Feel Better, And Beat Kidney Decline Thanks To Blisso

Find out how cat owners across the country restored their cat’s appetite, supported kidney health, and got their happy, loving companion back — without changing the prescription diet their cat is already on

Wendy L. 

This product has made my heart so happy

It had been MONTHS since Misty wanted any attention. She wasn’t her spunky, vocal self — her kidney disease was taking over. Within three weeks of starting Blisso she was running through the house at 4:30am. I didn’t think I’d see that again.

Timothy H. 

We got our baby boy back

We tried everything — multiple vets, thousands of dollars. His kidney disease kept progressing and I was losing him. Six weeks on Blisso and he’s eating on his own, gaining weight, and coming to find us in the evenings. We got our baby boy back.

Laurie T. 

Skeptical at first — now I tell every CKD cat owner I know

I was completely skeptical. He was sleeping all the time, totally withdrawn from his kidney decline. I ordered Blisso out of desperation. Within two weeks he was in my lap again, purring. I genuinely didn’t expect it to work. I’m so glad I tried it.

The #1 Most Heartbreaking Thing Cat Owners Tell Us About Kidney Struggles:

I've Done Everything Right. Why Are They Still Getting Worse?

The #1 Most Heartbreaking Thing Cat Owners Tell Us

About Kidney Struggles:

I've Done Everything Right. Why Are They Still Getting Worse?

When a cat’s kidneys start failing, something happens in the gut that no prescription diet is designed to address.

When a cat's kidneys start failing, uremic toxins flood directly into the gut lining...


And they destroy the barrier that's supposed to protect the intestinal wall...


That's why your cat stops absorbing nutrition from the food they eat...


That's why they lose weight even on the days they eat...


That's why the gut becomes so inflamed and painful that eating feels worse than not eating...


That's why they retreat to the back of the closet...


And that's why you can follow every single instruction your vet gave you — the prescription food, the fluids, the binders, the appetite stimulants — and still watch them slip away.


No amount of prescription food fixes a destroyed gut lining...why?


Because kidney decline isn't just a kidney problem.


The toxins the kidneys can no longer filter go somewhere...


They go into the gut...


Where they destroy the very system the body depends on to absorb nutrition, fight infection, and stay alive...


Creating a loop where gut damage accelerates kidney damage...


And kidney damage accelerates gut damage...


Until the cat you've loved for 15 years stops coming to find you in the mornings.


That's why cats with kidney struggles keep declining even when their owners do absolutely everything right.


Now It's Possible To Break The Cycle, Support The Kidneys From The Inside, And Bring Your Cat Back — With Blisso Advanced Cat Probiotic

Blisso was built for exactly this.


Not to replace what your vet prescribed. Not to ask you to change anything you're already doing.


To address the one piece your vet's protocol was never designed to reach.


A spore-forming probiotic strain that actually survives stomach acid and reaches the gut alive — where it crowds out the toxin-producing bacteria destroying the intestinal wall...


L-Glutamine to seal the gut barrier the toxins tore open...


Chlorella to trap the toxins already in the system and carry them out before they reach the kidneys again...


And PEA to put out the kidney inflammation that's been driving the decline from the inside.


The prescription food manages phosphorus. The fluids manage hydration.


Blisso manages what they were never designed to touch.


A few drops on your cat's food. Once a day. Alongside everything you're already doing.


Most cat owners see their cat back at the food bowl within 7–10 days.


The gut heals. The kidneys get a fighting chance. On autopilot.


All It Takes Is A Few Drops On Your Cat's Food Once A Day To

Support Kidney Health And Bring Them Back To Themselves

Blisso contains 7 clinically-researched probiotic strains plus 5 targeted supporting ingredients, formulated specifically for cats with kidney disease and digestive decline.


Every ingredient was selected for one reason: to break the gut-kidney loop that conventional CKD treatment doesn’t address.

Bacillus Coagulans

The only spore-forming probiotic strain that survives stomach acid and arrives in the gut alive — where it colonizes, crowds out toxin-producing bacteria, and begins reversing the gut damage driving kidney decline. In a clinical trial of CKD cats, this strain reduced or stabilized kidney function markers in 100% of cats over 8 weeks.

L-Glutamine

The amino acid the gut wall uses to rebuild itself. Uremic toxins from kidney disease spend months destroying your cat’s intestinal barrier — L-Glutamine is the raw material that seals it back up. Without it, toxins keep cycling through even after the probiotic shifts the bacteria.

Chlorella Powder

A freshwater microalgae with a unique ionic charge that physically binds to kidney toxin precursors already in the intestine and carries them out of the body before they can be reabsorbed into the bloodstream.

Palmitoylethanolamide (PEA)

A naturally-occurring compound that regulates the body’s inflammatory response. In cats with kidney disease, renal inflammation runs unchecked because the body can’t produce enough PEA to compensate. PEA supplementation has been shown to reduce inflammatory markers in kidney tissue and slow the rate of function decline.

Fennel Seed Powder

Supports digestive comfort and palatability — because none of the above matters if your cat won’t eat. Fennel reduces the gut cramping and nausea that makes kidney cats turn away from food, and its mild flavor profile helps even picky eaters accept the formula.

Chicory Root Inulin

A prebiotic fiber that feeds and multiplies the beneficial bacteria the probiotic strains are working to establish. A 9-year Purina study found prebiotic supplementation in cats increased beneficial gut bacteria by 77% — the foundation for sustained kidney health improvement.

Hydrolyzed Fish Collagen

Supports lean muscle mass and tissue integrity — directly addressing the visible muscle wasting that kidney disease causes as the body breaks down protein reserves. Helps cats hold weight and structural condition as the disease progresses.

Kelp Powder

A natural source of iodine, iron, and trace minerals that support thyroid function and metabolism — commonly disrupted in senior cats with kidney disease. Helps maintain healthy energy levels and organ function as part of the complete formula.

Sodium Copper Chlorophyllin

A water-soluble form of chlorophyll that supports detoxification at the cellular level and helps neutralize ammonia buildup — a key driver of the nausea and appetite loss that kidney cats experience as waste products accumulate.

Flaxseed Powder

A source of omega-3 fatty acids and soluble fiber that supports gut motility, reduces intestinal inflammation, and contributes to coat quality — one of the first visible signs owners notice when a kidney cat’s gut begins to heal.

Turmeric Root Extract

Contains curcumin, one of the most well-researched natural anti-inflammatory compounds in veterinary use. Works alongside PEA to reduce the chronic low-grade inflammation that accelerates kidney fibrosis in CKD cats.

6-Strain Probiotic Blend

Lactobacillus acidophilus, Lactobacillus rhamnosus, Bifidobacterium longum, Lactobacillus plantarum, Bifidobacterium breve, and Lactobacillus casei — 250 million CFU working alongside Bacillus Coagulans to diversify and restore the gut microbiome that kidney disease collapses.

✅ 90 Day Money Back Guarantee

The 2026 ‘Bring Her Back’ Plan:

Don’t Change Her Prescription Kidney Diet Or Vet Protocol… Simply Add Blisso And Watch Your Cat Go From Hiding And Refusing Food To Eating, Purring, And Finding You Again

Don’t Change Her Prescription Kidney Diet Or Vet Protocol… Simply Add Blisso And Watch Your Cat Go From Hiding And Refusing Food To Eating, Purring, And Finding You Again

Blisso works on autopilot alongside your existing kidney protocol — a few drops on her food once a day is all it takes. While you continue everything your vet has prescribed, Blisso addresses the gut-kidney loop working silently underneath.

Day 1… Many cats show more interest in food within the first 24 hours — the formula is palatable and the gut begins to shift immediately


Day 7… The gut bacteria are changing. Most owners notice their cat spending less time hiding and more time in the main living areas


Day 14… Appetite is stabilizing. She’s eating more consistently. Many cats start actively seeking out their owner for the first time in weeks


Day 21 Weight loss is slowing or stopping. Coat quality starts to improve. The cat who had been retreating is coming back


Day 30… Most owners report a cat that feels like herself again — eating, purring, engaged, and present. Kidney bloodwork at this stage often reflects what owners already knew from watching her

A few short weeks from now… don't be surprised when your vet looks at her kidney bloodwork, turns to you, and says "Whatever you're doing, keep doing it." 

Day 1… Many cats show more interest in food within the first 24 hours — the formula is palatable and the gut begins to shift immediately


Day 7… The gut bacteria are changing. Most owners notice their cat spending less time hiding and more time in the main living areas


Day 14… Appetite is stabilizing. She’s eating more consistently. Many cats start actively seeking out their owner for the first time in weeks


Day 21 Weight loss is slowing or stopping. Coat quality starts to improve. The cat who had been retreating is coming back


Day 30… Most owners report a cat that feels like herself again — eating, purring, engaged, and present. Kidney bloodwork at this stage often reflects what owners already knew from watching her

A few short weeks from now… don’t be surprised when your vet looks at her kidney bloodwork, then looks at her, and quietly asks what you changed

✅ 90 Day Money Back Guarantee

Works For Cats Of All Ages And Breeds:

Supports Kidney Health, Appetite, Energy,

Coat, And Engagement

She starts eating on her own again

Addresses the gut inflammation driving kidney cats away from food — most owners see improved appetite within the first 7–14 days

She comes out of hiding

As the gut heals and kidney-related discomfort decreases, cats re-engage with their environment and the people they love

Energy and personality return

The cat who had been sleeping all day and withdrawing from kidney decline starts moving, purring, and demanding attention again

Kidney numbers stabilize

By targeting the gut-kidney loop, Blisso reaches the underlying driver of decline that prescription kidney food alone doesn’t touch

Coat and weight improve

Better nutrient absorption from a healing gut means visible improvements in coat quality and healthy weight maintenance — the first signs owners notice

Give Your Cat The Kidney Support Formula Vets Are Now Recommending

Vet Recommended For Kidney Cats
No Artificial Fillers Or Preservatives
Made In An FDA-Registered GMP-Certified Facility
Spore-Forming Probiotics That Actually Reach The Gut
90-Day Empty Bottle Money Back Guarantee
Vet Recommended
For Kidney Cats
No Artificial Fillers
Or Preservatives
Made In An
FDA-Registered
GMP-Certified Facility
Spore-Forming Probiotics
That Actually Reach The Gut
90-Day Empty Bottle
Money Back Guarantee

FREE Shipping On All Orders Over $50

Select Your
Package
1
Billing
Information
2
Thank
You
3

Choose Your Package Below

Starter Pack
Starter Pack
$79.90
$39.95 Per Bottle
+ $4.95 shipping
90 DAYS
MONEY BACK GUARANTEE
Best Value
Best Value
70% OFF
$479.40
$24.00 Per Bottle
Free Shipping
90 DAYS
MONEY BACK GUARANTEE
FREE
SHIPPING
FREE
GIFTS

Our trusted payment processors:

Payment Methods
SSL Secure

We use a 256-bit secure shopping cart where 100% of your data is encrypted, safe and secure. This is the same data security standard used by most banks, governments and military organizations.

Choose Your Supply Below

STARTER ORDER

$39.99

Per Bottle

Total:$39.99

or 4 installments of $10.00 with
90 DAYS
MONEY BACK
GUARANTEE

MOST POPULAR

$31.99

Per Bottle

Total:$79.98 $63.98

or 4 installments of $27.99 with
90 DAYS
MONEY BACK
GUARANTEE
FREE
COOKBOOK

BIGGEST SAVINGS

25%

OFF

$27.99

Per Bottle

Total:$159.96 $111.96

or 4 installments of $16.00 with
90 DAYS
MONEY BACK
GUARANTEE
FREE
COOKBOOK
Our trusted payment processors:
We use a 256-bit secure shopping cart where 100% of your data is encrypted, safe and secure. Blisso will never share or sell your information.

Your Purchase Is Protected By Our

90 Day 100% Money Back Guarantee

Here at Blisso, we make sure cat owners love what they see — or we refund 100% of their investment. We’re so confident in what this formula does for kidney cats that we’ll bear all the risk. You bring the cat. We’ll back the result.

Free Shipping On 2 And 4 Bottle Orders
(Within US Only)

No one likes paying for shipping. That’s why when you purchase two bottles or more, we gift free shipping within the US. You save more when you buy more!

90 Day Money

Back Guarantee

Most cat owners notice their kidney cat eating more consistently within the first 7–14 days. Some see changes faster. Some cats take a little longer — especially seniors with advanced kidney disease. So the best thing you can do is give it a full 90 days. If you don’t see meaningful improvement in appetite, energy, or engagement, contact us for a complete refund. Full bottle or empty bottle. No questions asked.

Instant Refunds

We want you to see your cat eating again. We want you to watch her come out of hiding, step onto the bed, find you on the couch. That’s what we built this for. If Blisso doesn’t deliver that for your kidney cat within 90 days, we will refund every penny immediately — no forms, no hoops, no waiting.

Real, Verified Results:
See Why Cat Owners All Over The Country Call

Blisso “The Only Thing That Actually Helped My Cat’s Kidneys”

Note: All reviews below are from actual paying customers.

They have been authenticated and verified.

4.8
Rated 4.8 out of 5 stars
Based on 53,759 reviews
99%would recommend these products
250+ reviews
  • Nancy R.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    My cat was looking for a place to die. Blisso brought her back.

    Gracie had stopped eating and was hiding in the back of the closet. My vet told me to take her home and enjoy the time we had left. Her kidneys were failing and nothing was working. Three weeks after starting Blisso she was in the kitchen every morning waiting for breakfast. She’s 16 and she’s still here.

  • Wendy L.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    3 months ago
    This product has made my heart so happy

    Misty hadn’t wanted attention in months — her kidney disease had taken everything out of her. Within three weeks of starting Blisso she was running through the house at 4:30am. I didn’t think I’d ever see that again.

  • Timothy H.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    3 months ago
    We got our baby boy back

    Spent thousands at the vet trying to help his kidneys. Nothing was working. Six weeks on Blisso and he’s eating on his own, gaining weight, and coming to find us in the evenings. We got our boy back.

  • Maryanne S.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    3 months ago
    I will bring the miracle in a bottle to show my vet

    They told me Onyx would die because his kidneys were failing. He weighed 4 pounds. I believe it is because of Blisso that my cat is still alive today. I’m bringing the bottle to his next kidney appointment.

  • Gloria K.
    Verified Buyer
    I recommend this product
    Rated 5 out of 5 stars
    3 months ago
    Her kidney numbers came back better than expected

    Her kidney bloodwork improved more in two months than it had in the previous year. But honestly I didn’t need the numbers to tell me — she’d already jumped back onto the bed for the first time in months.

What’s Inside Blisso?

Nothing But Natural, Research-Backed Ingredients Your Cat’s Kidneys And Gut Actually Need

Each bottle contains a full 30-day supply. Simply add a few drops to your cat’s food once daily — no mixing, no fuss, no disrupting the kidney diet she’s already on.

What’s Inside Blisso?

Nothing But Natural, Research-Backed Ingredients Your Cat’s Kidneys And Gut Actually Need

Each bottle contains a full 30-day supply. Simply add a few drops to your cat’s food once daily — no mixing, no fuss, no disrupting the kidney diet she’s already on.

We’re On A Mission To Help 1,000,000 Cats With Kidney Disease Feel Like Themselves Again — Naturally

We're On A Mission To Help

1,000,000 Cats With Kidney Disease Feel Like

Themselves Again — Naturally

We're On A Mission To Help

1,000,000 Cats With Kidney Disease

Feel Like Themselves

Again — Naturally

Still Not Sure?

Here Are The Top Questions We Get

About Blisso Advanced Cat Probiotic

How do I give this to my cat?

Simply add the recommended number of drops directly to your cat’s food once daily. The formula is liquid, virtually flavorless to most cats, and mixes seamlessly into wet or dry food — including prescription kidney diets. No syringes, no capsules, no fighting with your cat.

What are the ingredients?

Blisso contains: ✅ Bacillus Coagulans (100M CFU) ✅ 6-Strain Probiotic Blend — L. acidophilus, L. rhamnosus, B. longum, L. plantarum, B. breve, L. casei (250M CFU) ✅ L-Glutamine ✅ Chlorella Powder ✅ Palmitoylethanolamide (PEA) ✅ Chicory Root Inulin ✅ Hydrolyzed Fish Collagen ✅ Kelp Powder ✅ Sodium Copper Chlorophyllin ✅ Flaxseed Powder ✅ Turmeric Root Extract ✅ Fennel Seed Powder

Where is the formula produced?

Blisso is produced in small batches in an FDA-registered, GMP-certified facility in the United States. Every batch is third-party tested for purity, potency, and accurate dosage before it ships. We will never compromise quality to meet demand.

Will my cat actually eat it?

The formula is liquid and designed to be added directly to food — including the prescription kidney diet your cat is already on. The vast majority of cats accept it without issue, including picky eaters. The fennel-based palatability agents make it easy to administer. If your cat is particularly resistant, starting with a smaller amount and gradually increasing to full dose typically works within a few days.

Can this be used alongside other supplements or kidney medications?

Yes. Blisso is designed to complement your existing vet kidney protocol — not replace it. It works alongside prescription renal food, subQ fluids, phosphorus binders, and appetite stimulants. As always, if your cat is on specific medications for kidney disease, consult with your vet before adding any new supplement.

Is this formula safe?

Yes. All ingredients are natural, extensively researched, and produced in a certified facility. Blisso contains no artificial fillers, no harmful preservatives, and no ingredients that have shown adverse effects in feline safety studies. A small number of cats may experience mild digestive adjustment in the first few days as the gut microbiome shifts — this is normal and typically resolves within a week.

When is the best time to give it?

Most owners add it to their cat’s morning meal for consistency. Giving it with food supports absorption and minimizes any initial adjustment period. Consistency matters more than timing — the same time each day produces the best results.

Can pregnant or nursing cats use this?

We recommend consulting your veterinarian before giving Blisso to pregnant or nursing cats. While all ingredients are natural, we have not conducted specific studies in this population and defer to your vet’s guidance.

Can kittens use this formula?

Blisso was formulated for adult and senior cats, particularly those managing kidney disease or digestive decline. We do not recommend it for kittens under 12 months without veterinary guidance.

How should I store it?

Store in a cool, dry place away from direct sunlight. Refrigeration after opening is recommended to preserve the viability of the probiotic strains. Use within 90 days of opening.

Are there any side effects?

Blisso has been formulated with feline safety as the primary consideration. In a small percentage of cats — particularly those with severely compromised digestion from advanced kidney disease — mild loose stool or increased gas may occur in the first 3–5 days as the gut microbiome adjusts. This is normal and typically resolves on its own. If symptoms persist beyond one week, discontinue use and consult your veterinarian.

How long does one bottle last?

Each bottle contains a full 30-day supply at the recommended dosage for an average-sized adult cat. Dosage may vary slightly by body weight — see the label for guidance.

Why choose Blisso over other cat probiotics?

Most cat probiotics use strains that are destroyed by stomach acid before they reach the gut — making the CFU count on the label meaningless. Blisso is built around Bacillus Coagulans, a spore-forming strain that survives transit and actually arrives in the intestine where it can work. Beyond the probiotic strains, no other cat formula combines L-Glutamine, Chlorella, and PEA to address the complete gut-kidney loop — the specific mechanism driving decline in kidney cats that standard treatment doesn’t touch.

Medical information, product reviews, warnings and legal disclaimer

Product Legal Disclaimer: At Blisso, we have no compromise when it comes to quality, safety, and transparency. The statements on this page have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Results described in testimonials are not typical and individual results will vary. Always consult your veterinarian before starting any new supplement, particularly for cats with existing kidney disease or other medical conditions. Blisso is a dietary supplement for cats and is not a replacement for veterinary care.

Guarantee

Blisso comes with a 90-day money back guarantee that applies to all supply sizes. If you are not satisfied for any reason, return the bottle — full or empty — within 90 days for a complete refund. No questions asked.

✅ 90 Day Money Back Guarantee