Help Your Cat Get More From Every Meal

A blue retail box and single stick packet of KITTY UP ResiliBiome Feline Specific Health Supplement on a plain white background.
Active and Inactive ingredient list for Resilibiome Gut + Immune Health
ResiliBiome product facts label on blue background.
Heap of Resilibiome Gut + Immune Health probiotic powder on a silver plate.

ResiliBiome™ 5-STRAIN PROBIOTIC·3 FELINE-ORIGIN STRAINS

Daily Probiotic for Cats + Gut & Immune Health

Veterinarian Formulated

ResiliBiome™ Gut + Immune Health supports healthy digestion and nutrient absorption, helping your cat make better use of the nutrition they eat. Each daily sachet combines 5 billion CFU with three research-supported feline-origin probiotic strains, prebiotics and postbiotics for gut balance and immune health.

Size

✓Supports nutrient absorption✓Helps maintain a balanced gut and supports everyday immune health✓Three research-supported feline-origin strains

Complete the Routine

Round out daily gut support with everyday multivitamin nutrition and targeted immune support.

Cat Multivitamin Purée – Chicken | Kitty Up Cat Multivitamin Purée – Chicken | Kitty Up$11.99 $10.79 Save 10% when you add it to your routine.
Cat Immune Support Purée | Beta Glucan + Colostrum Cat Immune Support Purée | Beta Glucan + Colostrum$13.99 $12.59 Save 10% when you add it to your routine.
ResiliBiome™ Gut + Immune Health | Daily Probiotics for Cats
Veterinary Formulated
Thoughtfully formulated for daily feline gut, digestive and immune support.
5B CFU + 5 Strains
Five probiotic strains deliver 5 billion CFU in every daily sachet.
3 Feline-Origin Strains
Three strains, originally sourced from healthy feline guts — selected with cats in mind.
Fed By Prebiotics
Prebiotics help nourish beneficial microbes so they can thrive and support a more balanced digestive environment.
Gut + Immune Support
Probiotics, prebiotics, postbiotics and beta-glucans work together to support the gut–immune connection.
Nutrient Absorption
Supports healthy digestion so your cat can better absorb nutrients from the food they eat.
From real Kitty Up homes

Sprinkled, served, and approved.

Daily serving

One box.
30 to 120 days.

Each sachet delivers 5 billion CFU. The daily serving scales with your cat's weight — and so does how long a box lasts.

Up to 5 lb

¼ sachet daily

120

Days

1.25 billion CFU per serving$0.27/day subscribed$0.33/day one-time

6–11 lb

½ sachet daily

60

Days

2.5 billion CFU per serving$0.53/day subscribed$0.67/day one-time

12+ lb

1 sachet daily

30

Days

5 billion CFU per serving$1.07/day subscribed$1.33/day one-time

30 sachets per box30–120 day supplyFrom $0.27 a day with Subscribe & Save

THE SCIENCE INSIDE

Why Strain Selection Matters

A probiotic is only as meaningful as the strains inside it.

ResiliBiome combines 5 billion CFU across five probiotic strains, including three originally isolated from cats, plus prebiotics, yeast beta-glucans and postbiotics for a more complete approach to feline gut and immune support.

3 Feline-Origin Strains

L. reuteri

KU-LR01

1.36B CFU

Gut Protection + Immune Support

Helps support the protective layer inside your cat’s gut, an important first line of defense for digestive and immune health.

Lc. paracasei

KU-LP01

1.36B CFU

Comfortable Digestion

Helps support a balanced gut for comfortable digestion and helps keep the microbiome from getting out of balance.

P. acidilactici

KU-PA01

0.90B CFU

Healthy Gut Balance

Helps support a healthy mix of gut bacteria so your cat’s digestive system stays balanced and works the way it should.

2 Complementary Strains

B. animalis subsp. lactis

0.90B CFU

Healthy Gut Bacteria + Stool Support

Helps support beneficial bacteria in the gut and healthy, well-formed stools.

S. boulardii

0.48B CFU

Digestive + Stool Support

A beneficial probiotic yeast studied in kittens with diarrhea, with research reporting improved stool scores and firmer stools.

Built to Reach the Gut

A probiotic can only provide support if it survives the digestive journey.

  • pH 2.0

    Survived stomach-like acidity in laboratory testing

  • 5% Bile

    Remained active through bile conditions in laboratory testing

  • 80% Adhesion

    Showed an 80% adhesion rate in feline-specific laboratory testing

More Than Probiotics

A more complete approach to gut + immune support.

Prebiotics

FOS and MOS support the intestinal environment and beneficial gut microbes through complementary mechanisms.

Yeast Beta-Glucans

1,3/1,6 beta-glucans interact with receptors involved in innate immune signaling, adding an immune-support component to the formula.

Postbiotics

Non-living microbial compounds provide another layer of gut and immune support without needing to remain alive through digestion.

Want to go deeper into the science?

Explore the research behind our strain selection.

Read the Article
Questions, answered

The things cat parents ask us most.

What makes ResiliBiome different from other cat probiotics?

ResiliBiome was built around strain selection, not just a CFU number. It combines five probiotic strains, including three originally isolated from cats, with prebiotics, yeast beta-glucans and postbiotics for a more complete approach to gut + immune support.

How much should I give my cat?

Up to 5 lb: ¼ sachet daily → 120 days. 6–11 lb: ½ sachet daily → 60 days. 12+ lb: 1 sachet daily → 30 days

Can I mix it with wet or dry food?

Yes. ResiliBiome can be sprinkled over your cat’s regular food. For dry food, adding it to a small amount of wet food or another food your cat enjoys may make serving easier.

Can my cat take ResiliBiome every day?

Yes. ResiliBiome is formulated as a daily probiotic supplement and can be incorporated into your cat’s regular routine.

How long until I notice a difference?

Every cat is different, and the timing can vary depending on their diet, gut health and individual needs. Consistent daily use is the best way to evaluate how your cat responds.