"Cats can hide problems until the signs are hard to miss. Daily moisture support is a simple place to start."
Dr. Kamila Martinez, DVM★★★★★
“She literally begs for it every morning.”
Rachel K. & Miso6-year-old Siamese
HydraFlow Daily · 84% Moisture
★★★★★ Trusted by 22,000+ cats
More water. Less stress. The two things vets keep coming back to for the bladder.
A lickable treat that’s 84% moisture, with L-theanine for calm and D-Mannose and NAG for bladder support.
Get 41% OFF Now
Nutritionist formulated
Urinary support formula
✓If your cat doesn't lick it clean, you don't pay · 90-day guaranteeSee terms
*from domestic and globally sourced ingredients
Out of the box
In real homes.
Real SuperCat families building an easier daily hydration routine.
“Since adding SuperCat to Oliver’s breakfast, he drinks more consistently, licks his bowl clean, and hydration is finally effortless.”
David M. and Oliver (cat)Your cat's bladder has a gap they can't feel
Cats were built as desert hunters. Prey was 70 to 75% water, so they never needed to feel thirsty. And they lived on their own terms, in their own territory.
Then we changed everything:
- We fed them kibble. Only 5 to 10% water.
- We gave them a water bowl. Cats were never built to drink much from one.
- We brought them indoors. Same four walls, every day.
- We kept changing their world. A new couch. A new pet. A move.
Less water in means thick, concentrated pee. That's where crystals start.
And stress sets off flare ups. Vets keep finding it behind bladder trouble, even when there's no stone and no infection.
Too little waterThick, concentrated peeWaltham Centre for Pet Nutrition, 2011
Too much stressBladder flare upsDr. Tony Buffington, Ohio State, 2011
That's the Bladder Gap: too little water, too much stress. A fountain only helps one side. So does a calming spray.
The water in natural prey. What cats were built to live on.
The water in dry kibble. Less water in, more concentrated pee.
The Bladder Gap doesn't announce itself. It builds.
cats with bladder signs have no stone or infection found. Stress is a known trigger.
of blocked males blocked again in a 2026 trial. On a calming drug, none did. (Drug not in HydraFlow.)
higher odds of urinary tract disease when cats eat only dry food.
for one urinary blockage emergency. Nearly half block again.
Built On Real Scientific Cat Studies
Peer reviewed studies and veterinary guidelines on how cats take in water, and what it means for the bladder.
6 articles · Swipe to explore
Sources are labeled by type. These articles do not establish clinical results for HydraFlow Daily.
Melissa Carter3h
Robert Hernandez5h
Karen Mitchell1h
Amanda Wilson7h
Jason Miller2h
Stephanie Brooks4h
Daniel Rodriguez6h
The first hydration supplement built for how cats actually drink
Prey-Level Moisture
84% moisture delivers meaningful daily hydration through food... not a bowl.
Urinary Support
D-Mannose and NAG support a healthy daily urinary-wellness routine.
Gut-Bladder Defense
FOS/Inulin Prebiotic supports a balanced digestive environment.
Your Cat Thinks It's a Treat
A savory chicken and chicken liver flavor your cat chases. They beg for it. You know it's doing a job.
Calm Support
L-Theanine supports a calm cat. Stress is one of the bladder triggers vets watch for.
Thousands of cats loving SuperCat
HydraFlow Daily by SuperCat Labs
A lickable savory puree in a single 12 g sachet. 84% moisture. Under 14 calories. Five support actives. Served on its own.
- Taurine, one of the main things cells use to hold water
- D-Mannose to support the bladder
- NAG, a building block of the bladder lining
- FOS/Inulin for the gut, L-Theanine for calm
- A small serving beside their usual meal
90 day acceptance guarantee. If your cat does not lick it clean, you do not pay.
Trusted by 22,000+ cats
Cat Parents Who Closed the Gap
Some cats will not drink. Some will not touch wet food. Some sniff every powder and walk away. The pattern is familiar: the owner knows hydration matters, but the cat gets the final vote.
SuperCat was built for that moment. One savory sachet. One daily lick. Moisture and urinary support in a format that feels like a treat instead of a fight.
★★★★★
“He licks his bowl clean, and hydration is finally effortless.”
David M. & Oliver9-year-old tabby
★★★★★
“This is the first one Luna finishes. Every single day.”
Sarah T. & Luna5-year-old shorthair
Why SuperCat wins where everything else fails
SuperCat is a daily hydration and urinary support supplement. Not a food. Pick what you use today and see how it compares.
SuperCatLickable treat tubesUrinary chewsPowdersWater fountains
PriceFrom $0.94 a sachetAbout 70¢ to 74¢ a tubeAbout 50¢ to $1.15 a dayFrom 90¢ a day$50 to $100, plus filters
Made forDaily hydration + urinary supportA treat
Your cat licks it like a treat✓✓✕✕✕
Water in every serving✓✓✕✕✓
D-Mannose + NAG + water in one lick✓✕✕✕✕
150 mg Taurine, more than a day of food✓Some added✕✕✕
No mixing, no cleaning✓✓✓✕✕
D-Mannose (150 mg) for the bladder✓✕
NAG (150 mg), a building block of the bladder lining✓✕
FOS/Inulin prebiotic (100 mg) for the gut✓✕
L-Theanine (50 mg) for calm✓✕
Money back if your cat won't eat it✓✕
The gap is already open. Every day it stays open, their bladder carries the load.
Join thousands of cat parents supporting their cat's hydration the way their body was built to get it.
Subscribe & Save: 41% Off Regular Price
Pause, skip, or cancel your subscription anytime. Shipping is calculated at checkout. If your cat doesn't lick it clean, you don't pay.
Get 41% OFF NowFormulated with veterinary nutritionists
"Most cat owners don't realize how little water their cat actually consumes. Cats evolved with almost no thirst drive... they were designed to hydrate through food. A lickable supplement with this moisture content and this ingredient profile is exactly the kind of daily support I recommend for indoor cats on dry or mixed diets. It's practical, it's palatable, and it addresses the hydration gap at the root."
— Vet. Kamila M., DVM, Board-Certified Veterinary NutritionistQuestions Cat Parents Ask Before Their First Box
How is this different from adding water to my cat's food?
Adding water to kibble changes the texture and temperature in ways many cats reject. HydraFlow adds five clearly listed actives in a lickable daily format: D-Mannose, NAG, Taurine, FOS/Inulin Prebiotic, and L-Theanine.
My cat is picky. What if they won't eat it?
The sachet is made with chicken and chicken liver, the savory flavors cats chase in lickable treats. If your cat likes lickable treats, they'll likely like this. And if they don't? Our 90-day guarantee means you pay nothing.
Can I give this alongside prescription urinary food?
SuperCat is a nutritional supplement, not a medication. It's designed to complement — not replace — your vet's recommendations. That said, always let your vet know what supplements you're adding. We encourage it.
How many calories per sachet?
Under 14 kcal per sachet. Designed to fit into a simple daily routine.
Can I give this to a cat who has blocked before?
It's made to go alongside the special food and your vet's plan, not instead of them. It's a supplement, not a medicine. Let your vet know you're adding it, especially after a blockage.
How does the subscription work?
Choose your supply (30, 60, or 90 days). We ship automatically so you never run out. Adjust, pause, or cancel anytime — no commitments, no fees, no hoops.
When will I see results?
Most cat parents notice their cat drinking less from the bowl within the first week — that's normal. The sachet is delivering the moisture their body needs through food, the way nature intended. Improved litter-box habits (more dilute urine, larger clumps) typically show within 2–4 weeks of consistent daily use.
What if it doesn't work for my cat?
Then it's free. Our 90-day guarantee covers whether your cat eats it. If your cat doesn't lick it clean, we refund you.
