Wellness, Thoughtfully Made for Cats.
Cat-specific supplements with clinically studied ingredients, made in an FDA-registered facility — so you can support your cat's health with confidence.
Focused support for a cat’s real, everyday needs
What Sets Our Cat Supplements Apart
Three cat supplement formulas. One standard: only what your cat needs,
made with ingredients you can verify, in a facility you can trust.
They Give You Everything.
Give Them the Best.
Your cat trusts you with every meal, every routine, every choice.
Billi Pet supplements are how you earn it — with feline-exclusive formulas, clean ingredients, and a 4-month supply in every jar.
One Scoop. Once a Day. That's It.
No pills to hide. No liquids to wrestle with.
Just a fine powder that blends into your cat's food in seconds — wet or dry.
Each jar lasts 4 full months. Less reordering, less hassle, more time doing what actually matters.
About Cat Supplements
Frequently Asked Questions
About Cat Supplements
Frequently Asked Questions
Manufactured in Florida, USA in an FDA-registered, GMP-certified, SQF-certified facility. Every batch is independently verified by a third-party lab for purity and potency before it ships to you.
Our #1 ingredient across all three products is Hydrolyzed Fish, a hypoallergenic, protein-rich base cats instinctively find appealing. The fine powder blends into wet or dry food in seconds. No chicken, no strong smell. Most cats eat it without even noticing it's there.
Hip & Joint if your cat is hesitating before jumps, moving stiffly, or slowing down with age.
Probiotic if your cat has loose stools, vomiting, gas, or a sensitive stomach.
Allergy & Immune if your cat is sneezing, over-grooming, scratching, or dealing with seasonal irritation.
Not sure? Start with one. All three can be used together in the same meal.
Most cat owners notice changes within 4–6 weeks of consistent daily use.
Joint support and immune health build gradually, consistency matters more than anything.
If you don't see a difference after 6 weeks, try increasing to 2 scoops daily."
Your Cat's Wellness Shouldn't Depend on You Remembering to Reorder
Set your delivery schedule, save on every jar of Billi Pet cat supplements, and never run out of your cat's daily routine.
Total flexibility
Pause, swap, or cancel your cat supplement subscription anytime — no commitment, no penalties.
Free shipping
Complimentary shipping on every subscription delivery of Billi Pet cat supplements
Save up to 15%
Exclusive savings on every recurring delivery — up to 15% off your cat's daily wellness support.
What People Are Saying
Since I started using billi pet Hip & Joint for my senior cat, I've seen a huge improvement in her mobility. She loves jumping onto her favorite spots again without struggling. The turmeric and glucosamine have truly made a difference!
After introducing billi pet Probiotic into my cat’s diet, her digestive issues have completely improved.
She’s less gassy, and her coat looks shinier than ever. It's so easy to use!
My cat has always suffered from allergies, and nothing seemed to help. Since using Allergy & Immune powder from Billi Pet, she’s been more comfortable and itching less. I can tell she’s finally feeling better!
This product has been a game-changer! My cat's joints are much less stiff, and she's much more playful now. I'm so happy I gave it a try.
I’ve tried several probiotics before, but nothing worked as well as BP Cats Probiotic. My cat’s stomach issues have vanished, and I noticed she’s been more energetic and happy.
This product worked wonders for my cat's seasonal allergies. She’s not sneezing as much and has stopped scratching her ears constantly. I’m so relieved!
