Most cat probiotics are dead before they reach the gut.

Most are heat-processed into powders and capsules. The bacteria are dead before the bottle is sealed. And even if some survived manufacturing, research shows fewer than 0.001% of powder probiotics survive stomach-acid conditions. For every million on the label, fewer than 10 make it through alive.

Aerixis is built to solve all three failure points at once:

1. Cold-processed liquid — so they start alive. No heat. 10 billion+ live cultures per serving, alive and active the moment they hit your cat’s system. Dead bacteria can’t do anything. Ours aren’t dead.

2. Acid-tolerant strains — so they survive the stomach. L. acidophilus barely loses viability even at pH 2.5. E. faecium survives gastric transit almost entirely intact. These aren’t random strains. They were chosen because they’re proven to get through a cat’s stomach alive. In a controlled feline trial, L. acidophilus arrived alive in the gut, grew good bacteria, decreased harmful Clostridium, and lowered blood toxin levels.

3. Inulin prebiotic — so they have fuel when they arrive. Most probiotics send bacteria in with nothing to eat. Like planting seeds in concrete. In a double-blind randomized trial in cats, inulin cut harmful gut bacteria by more than half, boosted beneficial bacteria, and increased butyrate, the compound that repairs the gut lining, in just 6 weeks.

Plus bromelain, a natural enzyme that helps break down the protein a struggling stomach can’t handle, so meals digest instead of sitting heavy.

Why the gut matters: as kidneys decline, gut bacteria start producing toxins that cause nausea and shut down appetite. Support the gut, and you support everything downstream: appetite, digestion, weight and energy. This layers on top of everything your vet already has you doing, not instead of it.

🇺🇸 Made in the USA in a GMP-certified facility · Every batch third-party lab tested

2ml per cat, per day: 1ml in the morning and 1ml at night.

• Straight into the mouth (recommended): this way your cat gets the full dose, every time.
• On a lick of food or a treat: good for cats who prefer it that way.
• Mixed into a small portion: only one they’ll finish completely.

It’s bacon-flavored and takes 5 seconds. No pills, no wrestling. It’s shelf-stable, so no fridge is needed.

Each 60ml bottle lasts:

• 1 cat: 30 days
• 2 cats: 15 days
• 3 cats: 10 days

• Day 1: No more pill fights. Your cat takes it like a treat.
• Weeks 1–2: Calmer tummy, firmer stools. In a feline trial, E. faecium cut diarrhea episodes by nearly 3x vs. placebo.
• Weeks 2–6: More interest in food, meals kept down, energy returning.
• Weeks 6–8: Gut balance rebuilt, matching the timeline seen in feline studies.
• Long term: Steady weight, a cat who acts like themselves again, and more good years together.

Every cat is different. Daily, consistent use is what makes the difference.

Watch your cat come back to life, or it’s free.

The gut takes 6–8 weeks to rebalance, so we give you 120 days. That’s enough time to see the full change, not just week one.

If you don’t see your cat eating better, keeping food down, and getting their spark back, contact us for a 100% refund.

1. My cat refuses everything. Will they actually take it?

Most cats take it like a treat. That’s why we made it bacon-flavored.

In a survey of 2,500+ cat owners, nearly 8 in 10 said their cat spits out tablets, and more than 1 in 3 gave up on treatment entirely because it was too hard. Aerixis is a few drops of liquid straight into the mouth. It takes 5 seconds, with no pilling, no scratched arms, and no damage to your bond.

2. I already tried a probiotic and nothing changed. Why would this be different?

You were right to try a probiotic. The gut is the right target. The problem was almost certainly the product.

Most are heat-made powders or capsules, so the bacteria are dead before the bottle is sealed. Opening a capsule to sprinkle it destroys its protective coating. Either way, what reaches the gut is dead, and dead bacteria can’t do anything.

Aerixis uses live, cold-processed liquid cultures, paired with inulin, so they arrive alive and have fuel when they get there.

3. Is it too late for my cat?

We’ll be honest: no supplement reverses kidney damage that’s already happened, and anyone who claims otherwise isn’t telling you the truth.

What gut support can do is help your cat eat, keep food down, and feel more like themselves, at any stage. Starting earlier protects more good time, because every week the gut stays out of balance is time lost. Talk to your vet about your cat’s specific stage.

4. Can I use it with a renal diet, fluids, or medications?

Yes. It’s designed to work alongside everything your vet recommends.

The renal diet protects from the outside. Fluids flush toxins from the blood. But neither reaches the gut, where those toxins are being produced. Aerixis fills that gap.

Keep doing what you’re doing and add this on top. If your cat is on medication, check with your vet first.

5. How many bottles do I need?

Gut changes in feline studies show up at 6–8 weeks, and one bottle lasts one cat 30 days. That’s why most owners start with 3 bottles per cat: enough for the full reset with no gaps.

If you have 2 or more cats, the larger bundles cover the same timeline for each of them.

6. Is it safe?

Aerixis is a natural synbiotic: live cultures (E. faecium and L. acidophilus), inulin, and bromelain. It isn’t a drug and needs no prescription.

It’s made in the USA in a GMP-certified facility, and every batch is third-party lab tested. If your cat has a medical condition or takes medication, check with your vet before use.

7. How is this different from appetite stimulants?

Appetite stimulants force the hunger signal on. They can help in the short term, but they don’t fix why food feels bad. Even the veterinary consensus says stimulants aren’t a replacement for addressing what’s underneath.

Aerixis works on the gut, where the nausea and appetite shutdown start. Many owners use both.

8. My cat isn’t sick yet. Is it still worth starting?

Especially then. Cats can start losing weight up to 3 years before kidney problems are diagnosed, and by diagnosis, 60–75% of kidney function is often already gone. Gut-made toxins have been found elevated 6 months before diagnosis.

The best time to support the gut is before the decline shows.

9. What if it doesn’t work for my cat?

You’re covered for 120 days. Give it the full 6–8 weeks. If you don’t see a real difference, contact us and we’ll refund you 100%.