The kidney supplement you'd make yourself — if you had the lab.
A daily powder topper for adult and senior cats with kidney concerns. Five active ingredients, every dose printed in full — because you've earned a label you don't have to decode.
Made to order · ships in 12 weeks · pause or cancel anytime
Every milligram printed on the label. No proprietary blends.
Veterinary-formulated with feline research behind every ingredient.
Made in an FDA-registered, cGMP-certified facility in the USA.
60-day money-back. Pause, skip, or cancel anytime.
Why we made it
You've read the forums, the studies, the conflicting advice. You wanted one honest answer.
Most feline supplements live at two extremes: herbal and sentimental, with no feline evidence behind the claims — or clinical but opaque, the real doses buried inside a proprietary blend you're not allowed to see.
Tespera is what sits between the two: real actives from the feline literature, dosed transparently, in a format your cat will actually eat.
What's inside
Five actives. Every milligram, in full.
The whole formula is on the label — and on this page. We don't use proprietary blends, because a blend is just a way to avoid telling you the dose.
If we can't show you the amount, we don't put it in.
Amounts shown per 3 g scoop. Always discuss new supplements with your veterinarian. This product is not intended to diagnose, treat, cure, or prevent any disease.
What it is
A daily nutritional topper. Nothing to learn.
- 01 One scoop. A stainless scoop, sized to exactly one 3 g serving.
- 02 Once a day. Same time, with a meal. 28 servings per pouch.
- 03 Over wet food. Mixed in. Most cats take it cleanly — no pills, no fuss.
How it works
Three steps. No surprises.
Order
Order today. $74/mo, billed now — pause or cancel anytime.
Ships in 12 weeks
We make each batch to order so the algal omega-3 reaches you fresh, never sitting in a warehouse. Your first pouch arrives in about 12 weeks: the pouch, a stainless scoop, and a single dosing card — nothing else in the box.
One scoop a day
Mixed once daily over wet food. 28 servings per pouch, refilled every 28 days.
From the counter
Caregivers who wanted the honest option.
"I've gotten good at reading supplement labels — mostly because so many are designed so you can't. This one just tells you. Every amount, right there. That alone made me trust the rest of it."
"Biscuit refuses anything that smells 'supplementy.' I mixed a scoop into his wet food braced for a standoff — he ate it like nothing had changed. Weeks in and he still doesn't notice it."
"What got me wasn't a claim — it was the absence of them. No 'miracle,' no countdown timer, no scare language about what happens if I don't buy. It read like it was written by someone who respects the person reading it."
FAQ
Questions, answered plainly.
When does it ship?
We make every pouch to order, so your first one ships in about 12 weeks — fresh, never warehoused. You'll get tracked delivery and a notification the day it leaves.
Can I cancel?
Anytime. Pause, skip, or cancel from your account in two clicks — no email, no phone call, no retention script.
What if my cat won't eat it?
Most cats take it cleanly mixed into wet food. A small number need a slower ramp; the dosing card in the box walks you through it. If it isn't a fit, reply to your welcome email and we'll make it right.
Is it safe to use alongside my cat's medications?
Tespera is a nutritional topper, not a medication. We strongly encourage you to share the ingredient panel with your veterinarian before starting. Your vet's care plan always comes first.
What's in it?
Five ingredient categories per scoop: marine-algal EPA/DHA, chitosan fiber, B-complex vitamins, potassium citrate, and methylcobalamin. Full amounts are listed in the What's inside section above.
How was it formulated?
Every ingredient and amount is drawn from published, peer-reviewed veterinary and feline-nutrition research. You can read the studies behind each one on The Science page.
SKU 01 · Renal Protocol
One scoop a day. That's the whole protocol.
A daily nutritional topper that supports normal kidney function in adult and senior cats. Made fresh to order — your first pouch ships in about 12 weeks.
Made to order · ships in 12 weeks · pause or cancel anytime
Always discuss new supplements with your veterinarian. This product is not intended to diagnose, treat, cure, or prevent any disease.
Stay in the loop
Notes from the lab, nothing in between.
Occasional updates on the formula and the feline kidney research behind it. No marketing filler.
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