End Your Cat's Kidney Decline & Restore Their Energy While Adding YEARS To Their Lifespan & Saving Thousands on Vet Bills with Just 2 Drops Daily!*
End Your Cat's Kidney Decline & Restore Their Energy While Adding YEARS To Their Lifespan & Saving Thousands on Vet Bills with Just 2 Drops Daily!*
✓ Supports healthy kidney function
✓ Restores appetite & energy levels
✓ Reduces toxic burden on kidneys
✓ Promotes overall wellness & vitality
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End Your Cat's Kidney Decline & Restore Their Energy While Adding YEARS To Their Lifespan & Saving Thousands on Vet Bills with Just 2 Drops Daily!*
Vet Formulated
Loved in USA
90 Day Guarantee
Free shipping
Vet Formulated
Loved in USA
90 Day Guarantee
Free shipping
Vet Formulated
Loved in USA
90 Day Guarantee
Free shipping
Vet Formulated
Loved in USA
90 Day Guarantee
Free shipping
Vet Formulated
Loved in USA
90 Day Guarantee
Free shipping
Vet Formulated
Loved in USA
90 Day Guarantee
Free shipping
Vet Formulated
Loved in USA
90 Day Guarantee
Free shipping
Vet Formulated
Loved in USA
90 Day Guarantee
Free shipping
Vet Formulated
Loved in USA
90 Day Guarantee
Free shipping
Vet Formulated
Loved in USA
90 Day Guarantee
Free shipping
Trusted by Professionals, and by Cat Parents
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Dr. Hannah Wells
DVM, Feline Internal Medicine
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Dr. Lee Okafor
VMD, cVMA · Integrative Vet
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Mochi
Letili Probiotic Superfan
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Biscuit
Letili Probiotic Superfan
Letili Fans Everywhere
Based on verified customer reviews
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★★★★★
I have my cat back
After her kidney scare we tried everything. Three weeks of two drops a day and she's eating, playing me at the door again.
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★★★★★
The hairballs stopped
My long-haired boy coughed up a big one every morning. A month in and I can't remember the last one. So easy.
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★★★★★
Picky queen approved
She refuses anything new and won't eat food with pumpkin added. Didn't even notice this mixed in. Stool firmed up in two weeks.
Keep It Consistent
Add two drops to your cat's food at the same time each day to build effective levels in their system.
If you're not happy after 90 days of consistent use, we'll refund you.
Helps support healthy kidney function
Reduces toxic buildup in the gut
Boosts appetite and energy levels
Helps calm excessive grooming
Minimizes hairball issues
Spore-protected to reach the gut alive
Letili Probiotic for Kidney & Gut
"As a small-animal vet, I've treated countless cats with declining kidney values and in many cases the root cause is an imbalanced gut flooding the bloodstream with toxins. Since adding a spore-protected probiotic to my protocols, I've seen cats bounce back faster, picky eaters finally get consistent, and bloodwork hold steady."
Dr. Tiffany Ruiz - VMD, cVMA
Is your Cat’s Gut Telling you Something?
These aren’t just quirks they can be early signs of an imbalanced gut microbiome.
Ignoring them may lead to more discomfort, more vet visits, and added strain on your cat’s kidneys.
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Excessive thirst
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Picky appetite / weight loss
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Low energy, hiding
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Hairballs most mornings
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Overgrooming / bald patches
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Dull, thinning coat
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Bad breath
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Loose or irregular stool
Why your Solutions aren't Working…
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Hairball gels & "control" food
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Pumpkin & oils in food
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Pills, tubes & treats
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Ordinary probiotics
How Does It Work?
Letili is formulated with five clinically studied active ingredients, each selected to help support the gut–kidney connection.
Third-party tested - GMO, hormone & antibiotic free - Globally sourced ingredients - Vet recommended
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Bacillus coagulans
A spore-protected strain that survives stomach acid and reaches the gut alive to help process waste.
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Chicory root inulin
Letili prebiotic Advanced Cat fiber that helps support gut balance and reduce strain on the kidneys.
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Hydrolyzed fish collagen
Helps support and protect the intestinal lining while calming inflammation linked to kidney stress and overall gut imbalance.
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Hydrolyzed beef liver
A highly palatable ingredient that helps encourage eating, even in cats affected by nausea and B-vitamins.
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Turmeric (curcumin)
Helps support a healthy inflammatory response and protect cells from oxidative stress that can affect kidney function.
A Daily Drop Designed To Rebalance Their Gut
Letili is more than a probiotic it’s a science-backed formula designed to support digestion at its source and help restore balance in the gut.
The result? A cat that eats more consistently, has fewer hairballs, a calmer coat, and reduced strain on the kidneys.
In a Sea of Competition, Why
Trust Letili?
| Letili | Others | |
|---|---|---|
| Cost per day | $0.50 | $0.80 – $1.50+ |
| Survives stomach acid |
Most strains die before the gut
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| Targets the gut–kidney loop |
Single-strain, generic blends
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| Active ingredients per dose | 5 actives | 1–2 on average |
| No pills — liquid drops |
Pills cats fight & spit out
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| Made in USA · cGMP |
Often made overseas
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| 90-Day Money-Back |
30 days, rarely honored
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What to Expect from Letili
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Day 1–7
Two drops on food no struggle. The spore-protected probiotic reaches the gut, with results often seen within 72 hours.
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Day 8–30
Digestion stabilizes firmer stool, fewer hairballs, and less vomiting. Appetite and energy return as gut balance improves.
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Day 30 & Beyond
Overgrooming eases, the coat improves, and kidney strain is reduced. Energy and behavior return to normal.
Scientifically Proven Ingredients That Work
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Bacillus Coagulans
Study: “Evaluation of spore-forming Bacillus coagulans on nutrient digestibility, immune function and fecal characteristics in healthy adult animals”
Overview: This study examined the effects of Bacillus coagulans supplementation on nutrient absorption, immune response, and stool quality.
Findings: Subjects receiving Bacillus coagulans showed improved nutrient digestibility and firmer stool consistency, supporting its role in digestive health.
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Chicory Root Inulin
Study: “Dietary inulin supplementation reduces nitrogenous waste and improves gut microbiota balance”
Overview: This research investigated the effects of prebiotic inulin on gut microbiota composition and the body’s handling of nitrogenous waste products. The focus was on how dietary fiber supplementation may influence gut bacterial populations.
Findings: Inulin helped increase beneficial gut flora and reduce nitrogenous waste levels, which may help support kidney function.
Quality you don't have to Question
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Made with globally sourced ingredients
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Batch tested for purity & potency
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No artificial colors or flavors
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GMO, hormone & antibiotic free
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Strict Safety Guidelines
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VET Recommended
Held to a Higher Standard
Every bottle of Letili is third-party tested before shipping, ensuring the label matches exactly what’s inside.
Frequently Asked Questions
How quickly will I see results with Letili Advanced Cat Probiotic?
Most cat owners report noticeable changes within the first 48–72 hours of use. Early signs often include improved appetite, more stable energy, and better hydration habits.
Within the first week, many cats show visible improvements in behavior, becoming more active and alert. By weeks 2–3, many owners notice more consistent digestion, including better stool quality and reduced digestive upset.
For longer-term results, continued use over 4–6 weeks may support more stable overall digestive balance. Some cats with more advanced issues may take longer to show noticeable changes.
For best results, daily and consistent use is recommended for at least 90 days.
What are your ingredients?
Key Ingredients (Made in USA):
Our formula combines two core blends designed to support digestive health.
The first is a proprietary wellness blend featuring ingredients such as chicory root, inulin, beef liver powder, kelp, collagen, and spirulina.
The second is a targeted probiotic complex featuring Bacillus coagulans along with multiple probiotic strains, including Lactobacillus and Bifidobacterium species, designed to survive stomach acid and reach the gut.
Together, these ingredients are formulated to support overall digestive balance and gut function.
How do I give the probiotic to my cat?
Add 2 drops to your cat’s wet or dry food once daily. The formula is tasteless and odorless, making it easy even for picky eaters.
For cats with sensitive digestion, some owners begin with 3 drops daily for the first week before transitioning to the standard 2-drop daily serving.
How long does each bottle last?
Each bottle provides approximately a 30-day supply when used as directed (2 drops per day). Multi-bottle options are available for ongoing use.
Do you have a money-back guarantee?
Yes. We offer a 90-day money-back guarantee. If you are not satisfied with your purchase, you can request a refund within 90 days.